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Thread: WiFi connection instantly disconnects

  1. #1
    Join Date
    Sep 2018
    Beans
    9

    WiFi connection instantly disconnects

    Hello,

    need help to get internet connection via wifi or Ethernet on Linux Mint 18.3 Cinnamon 64-bit
    both connections, wired or wi-fi, gets instantly disconnected after connection established.
    system message: “disconnected - you are now offline”
    router event log: connecting via wifi but no name and no IP-address; 25sec later disconnecting
    WLAN-Gerät angemeldet (2,4 GHz). Name: -, IP-Adresse: -, MAC-Adresse: 38E:AD:35:6C:27, Geschwindigkeit 300 Mbit/s.
    WLAN-Gerät abgemeldet (2,4 GHz). Name: -, MAC-Adresse: 38E:AD:35:6C:27.

    any idea?
    Thanks!

    Code:
    ########## wireless info START ##########
    
    Report from: 11 Jan 2019 14:33 CET +0100
    
    Booted last: 11 Jan 2019 00:00 CET +0100
    
    Script from: 22 Oct 2018 03:34 UTC +0000
    
    ##### release ###########################
    
    Distributor ID:    LinuxMint
    Description:    Linux Mint 18.3 Sylvia
    Release:    18.3
    Codename:    sylvia
    
    ##### kernel ############################
    
    Linux 4.15.0-43-generic #46~16.04.1-Ubuntu SMP Fri Dec 7 13:31:08 UTC 2018 x86_64 x86_64 x86_64 GNU/Linux
    
    Parameters: ro, quiet, splash, vt.handoff=7
    
    ##### desktop ###########################
    
    Cinnamon
    
    ##### lspci #############################
    
    01:00.0 Network controller [0280]: Intel Corporation Wireless 8260 [8086:24f3] (rev 3a)
        Subsystem: Intel Corporation Dual Band Wireless-AC 8260 [8086:0010]
        Kernel driver in use: iwlwifi
    
    02:00.0 Ethernet controller [0200]: Realtek Semiconductor Co., Ltd. RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller [10ec:8168] (rev 15)
        Subsystem: Micro-Star International Co., Ltd. [MSI] RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller [1462:7a70]
        Kernel driver in use: r8169
    
    ##### lsusb #############################
    
    Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
    Bus 001 Device 004: ID 0461:4d22 Primax Electronics, Ltd
    Bus 001 Device 003: ID 046a:0023 Cherry GmbH CyMotion Master Linux Keyboard G230
    Bus 001 Device 002: ID 04a9:1801 Canon, Inc.
    Bus 001 Device 005: ID 0bda:0111 Realtek Semiconductor Corp. RTS5111 Card Reader Controller
    Bus 001 Device 006: ID 090c:1000 Silicon Motion, Inc. - Taiwan (formerly Feiya Technology Corp.) Flash Drive
    Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
    
    ##### PCMCIA card info ##################
    
    ##### rfkill ############################
    
    0: phy0: Wireless LAN
        Soft blocked: no
        Hard blocked: no
    
    ##### secure boot #######################
    
    'mokutil' is not installed (package "mokutil").
    
    ##### lsmod #############################
    
    iwlmvm                364544  0
    wl                   6447104  0
    mac80211              778240  1 iwlmvm
    iwlwifi               282624  1 iwlmvm
    cfg80211              622592  4 wl,iwlmvm,iwlwifi,mac80211
    intel_wmi_thunderbolt    16384  0
    mxm_wmi                16384  0
    wmi                    24576  2 intel_wmi_thunderbolt,mxm_wmi
    
    ##### interfaces ########################
    
    [/etc/network/interfaces]
    auto lo
    iface lo inet loopback
    
    ##### ifconfig ##########################
    
    1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN group default qlen 1000
        link/loopback <MAC address> brd <MAC address>
        inet 127.0.0.1/8 scope host lo
           valid_lft forever preferred_lft forever
        inet6 ::1/128 scope host
           valid_lft forever preferred_lft forever
    2: enp2s0: <NO-CARRIER,BROADCAST,MULTICAST,UP> mtu 1500 qdisc pfifo_fast state DOWN group default qlen 1000
        link/ether <MAC 'enp2s0' [IF1]> brd <MAC address>
    3: wlp1s0: <NO-CARRIER,BROADCAST,MULTICAST,UP> mtu 1500 qdisc mq state DOWN group default qlen 1000
        link/ether <MAC 'wlp1s0' [IF2]> brd <MAC address>
    
    ##### iwconfig ##########################
    
    enp2s0    no wireless extensions.
    
    lo        no wireless extensions.
    
    wlp1s0    IEEE 802.11  ESSID:off/any  
              Mode:Managed  Access Point: Not-Associated   Tx-Power=22 dBm  
              Retry short limit:7   RTS thr:off   Fragment thr:off
              Power Management:on
              
    
    ##### route #############################
    
    ##### resolv.conf #######################
    
    [777 root '/etc/resolv.conf' -> '../run/resolvconf/resolv.conf']
    
    ##### network managers ##################
    
    Installed:
    
        NetworkManager
    
    Running:
    
    root      1004     1  0 14:22 ?        00:00:00 /usr/sbin/NetworkManager --no-daemon
    
    ##### NetworkManager info ###############
    
    GENERAL.DEVICE:                         wlp1s0
    GENERAL.TYPE:                           wifi
    GENERAL.NM-TYPE:                        NMDeviceWifi
    GENERAL.VENDOR:                         Intel Corporation
    GENERAL.PRODUCT:                        Wireless 8260 (Dual Band Wireless-AC 8260)
    GENERAL.DRIVER:                         iwlwifi
    GENERAL.DRIVER-VERSION:                 4.15.0-43-generic
    GENERAL.FIRMWARE-VERSION:               34.0.1
    GENERAL.HWADDR:                         <MAC 'wlp1s0' [IF2]>
    GENERAL.MTU:                            0
    GENERAL.STATE:                          30 (disconnected)
    GENERAL.REASON:                         0 (No reason given)
    GENERAL.UDI:                            /sys/devices/pci0000:00/0000:00:1c.0/0000:01:00.0/net/wlp1s0
    GENERAL.IP-IFACE:                      
    GENERAL.IS-SOFTWARE:                    no
    GENERAL.NM-MANAGED:                     yes
    GENERAL.AUTOCONNECT:                    yes
    GENERAL.FIRMWARE-MISSING:               no
    GENERAL.NM-PLUGIN-MISSING:              no
    GENERAL.PHYS-PORT-ID:                   --
    GENERAL.CONNECTION:                     --
    GENERAL.CON-UUID:                       --
    GENERAL.CON-PATH:                       --
    GENERAL.METERED:                        unknown
    CAPABILITIES.CARRIER-DETECT:            no
    CAPABILITIES.SPEED:                     unknown
    CAPABILITIES.IS-SOFTWARE:               no
    WIFI-PROPERTIES.WEP:                    yes
    WIFI-PROPERTIES.WPA:                    yes
    WIFI-PROPERTIES.WPA2:                   yes
    WIFI-PROPERTIES.TKIP:                   yes
    WIFI-PROPERTIES.CCMP:                   yes
    WIFI-PROPERTIES.AP:                     yes
    WIFI-PROPERTIES.ADHOC:                  yes
    WIFI-PROPERTIES.2GHZ:                   yes
    WIFI-PROPERTIES.5GHZ:                   yes
    CONNECTIONS.AVAILABLE-CONNECTION-PATHS: /org/freedesktop/NetworkManager/Settings/{1}
    CONNECTIONS.AVAILABLE-CONNECTIONS[1]:   e748ac0b-32ba-4199-9f6e-cc13e65012ed | MAJOR-TOM
    
    GENERAL.DEVICE:                         enp2s0
    GENERAL.TYPE:                           ethernet
    GENERAL.NM-TYPE:                        NMDeviceEthernet
    GENERAL.VENDOR:                         Realtek Semiconductor Co., Ltd.
    GENERAL.PRODUCT:                        RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller
    GENERAL.DRIVER:                         r8169
    GENERAL.DRIVER-VERSION:                 2.3LK-NAPI
    GENERAL.FIRMWARE-VERSION:              
    GENERAL.HWADDR:                         <MAC 'enp2s0' [IF1]>
    GENERAL.MTU:                            1500
    GENERAL.STATE:                          20 (unavailable)
    GENERAL.REASON:                         2 (Device is now managed)
    GENERAL.UDI:                            /sys/devices/pci0000:00/0000:00:1c.6/0000:02:00.0/net/enp2s0
    GENERAL.IP-IFACE:                      
    GENERAL.IS-SOFTWARE:                    no
    GENERAL.NM-MANAGED:                     yes
    GENERAL.AUTOCONNECT:                    yes
    GENERAL.FIRMWARE-MISSING:               no
    GENERAL.NM-PLUGIN-MISSING:              no
    GENERAL.PHYS-PORT-ID:                   --
    GENERAL.CONNECTION:                     --
    GENERAL.CON-UUID:                       --
    GENERAL.CON-PATH:                       --
    GENERAL.METERED:                        unknown
    CAPABILITIES.CARRIER-DETECT:            yes
    CAPABILITIES.SPEED:                     unknown
    CAPABILITIES.IS-SOFTWARE:               no
    WIRED-PROPERTIES.CARRIER:               off
    CONNECTIONS.AVAILABLE-CONNECTION-PATHS:
    
    SSID                 BSSID              MODE   CHAN  FREQ      RATE       SIGNAL  BARS  SECURITY     ACTIVE  *
    MAJOR-TOM            <MAC 'MAJOR-TOM' [AC1]>  Infra  1     2412 MHz  54 Mbit/s  100     ▂▄▆█  WPA1 WPA2    no        
    WLAN-750721          <MAC 'WLAN-750721' [AC3]>  Infra  5     2432 MHz  54 Mbit/s  77      ▂▄▆_  WPA2         no        
    o2-WLAN88            <MAC 'o2-WLAN88' [AC7]>  Infra  10    2457 MHz  54 Mbit/s  54      ▂▄__  WPA2         no        
    WLANHub              <MAC 'WLANHub' [AC4]>  Infra  11    2462 MHz  54 Mbit/s  44      ▂▄__  WPA1 WPA2    no        
    WLAN-750721          <MAC 'WLAN-750721' [AC6]>  Infra  100   5500 MHz  54 Mbit/s  44      ▂▄__  WPA2         no        
    Unitymedia WifiSpot  <MAC 'Unitymedia WifiSpot' [AC5]>  Infra  11    2462 MHz  54 Mbit/s  42      ▂▄__  WPA2 802.1X  no        
    Elsey+Paderborn      <MAC 'Elsey+Paderborn' [AC2]>  Infra  1     2412 MHz  54 Mbit/s  37      ▂▄__  WPA2         no        
    Unitymedia WifiSpot  <MAC 'Unitymedia WifiSpot' [AC9]>  Infra  11    2462 MHz  54 Mbit/s  30      ▂___  WPA2 802.1X  no        
    UPC99C9542           <MAC 'UPC99C9542' [AC8]>  Infra  11    2462 MHz  54 Mbit/s  30      ▂___  WPA1 WPA2    no        
    UPC3783577           <MAC 'UPC3783577' [AC10]>  Infra  1     2412 MHz  54 Mbit/s  29      ▂___  WPA1 WPA2    no        
    
    ##### NetworkManager.state ##############
    
    [main]
    NetworkingEnabled=true
    WirelessEnabled=true
    WWANEnabled=true
    
    ##### NetworkManager config #############
    
    [[/etc/NetworkManager/conf.d/default-wifi-powersave-on.conf]]
    [connection]
    wifi.powersave = 3
    
    [[/etc/NetworkManager/NetworkManager.conf]]
    [main]
    plugins=ifupdown,keyfile,ofono
    dns=dnsmasq
    [ifupdown]
    managed=false
    
    ##### NetworkManager profiles ###########
    
    [[/etc/NetworkManager/system-connections/MAJOR-TOM]] (600 root)
    [connection] id=MAJOR-TOM | type=wifi | permissions=
    [wifi] mac-address=<MAC 'wlp1s0' [IF2]> | mac-address-blacklist= | ssid=MAJOR-TOM
    [ipv4] method=auto
    [ipv6] method=auto
    
    ##### Netplan config ####################
    
    ##### iw reg get ########################
    
    Region: Europe/Berlin (based on set time zone)
    
    country 00: DFS-UNSET
        (2402 - 2472 @ 40), (6, 20), (N/A)
        (2457 - 2482 @ 20), (6, 20), (N/A), PASSIVE-SCAN
        (2474 - 2494 @ 20), (6, 20), (N/A), NO-OFDM, PASSIVE-SCAN
        (5170 - 5250 @ 80), (6, 20), (N/A), PASSIVE-SCAN
        (5250 - 5330 @ 80), (6, 20), (0 ms), DFS, PASSIVE-SCAN
        (5490 - 5730 @ 160), (6, 20), (0 ms), DFS, PASSIVE-SCAN
        (5735 - 5835 @ 80), (6, 20), (N/A), PASSIVE-SCAN
        (57240 - 63720 @ 2160), (N/A, 0), (N/A)
    
    ##### iwlist channels ###################
    
    enp2s0    no frequency information.
    
    lo        no frequency information.
    
    wlp1s0    32 channels in total; available frequencies :
              Channel 01 : 2.412 GHz
              Channel 02 : 2.417 GHz
              Channel 03 : 2.422 GHz
              Channel 04 : 2.427 GHz
              Channel 05 : 2.432 GHz
              Channel 06 : 2.437 GHz
              Channel 07 : 2.442 GHz
              Channel 08 : 2.447 GHz
              Channel 09 : 2.452 GHz
              Channel 10 : 2.457 GHz
              Channel 11 : 2.462 GHz
              Channel 12 : 2.467 GHz
              Channel 13 : 2.472 GHz
              Channel 36 : 5.18 GHz
              Channel 40 : 5.2 GHz
              Channel 44 : 5.22 GHz
              Channel 48 : 5.24 GHz
              Channel 52 : 5.26 GHz
              Channel 56 : 5.28 GHz
              Channel 60 : 5.3 GHz
              Channel 64 : 5.32 GHz
              Channel 100 : 5.5 GHz
              Channel 104 : 5.52 GHz
              Channel 108 : 5.54 GHz
              Channel 112 : 5.56 GHz
              Channel 116 : 5.58 GHz
              Channel 120 : 5.6 GHz
              Channel 124 : 5.62 GHz
              Channel 128 : 5.64 GHz
              Channel 132 : 5.66 GHz
              Channel 136 : 5.68 GHz
              Channel 140 : 5.7 GHz
    
    ##### iwlist scan #######################
    
    enp2s0    Interface doesn't support scanning.
    
    lo        Interface doesn't support scanning.
    
    Channel occupancy:
    
          3   APs on   Frequency:2.412 GHz (Channel 1)
          1   APs on   Frequency:2.432 GHz (Channel 5)
          1   APs on   Frequency:2.457 GHz (Channel 10)
          4   APs on   Frequency:2.462 GHz (Channel 11)
          1   APs on   Frequency:5.5 GHz (Channel 100)
    
    wlp1s0    Scan completed :
              Cell 01 - Address: <MAC 'MAJOR-TOM' [AC1]>
                        Channel:1
                        Frequency:2.412 GHz (Channel 1)
                        Quality=70/70  Signal level=-40 dBm  
                        Encryption key:on
                        ESSID:"MAJOR-TOM"
                        Bit Rates:1 Mb/s; 2 Mb/s; 5.5 Mb/s; 11 Mb/s; 6 Mb/s
                                  9 Mb/s; 12 Mb/s; 18 Mb/s
                        Bit Rates:24 Mb/s; 36 Mb/s; 48 Mb/s; 54 Mb/s
                        Mode:Master
                        Extra:tsf=00000000032337a5
                        Extra: Last beacon: 432ms ago
                        IE: IEEE 802.11i/WPA2 Version 1
                            Group Cipher : TKIP
                            Pairwise Ciphers (1) : CCMP
                            Authentication Suites (1) : PSK
                        IE: WPA Version 1
                            Group Cipher : TKIP
                            Pairwise Ciphers (1) : TKIP
                            Authentication Suites (1) : PSK
              Cell 02 - Address: <MAC 'Elsey+Paderborn' [AC2]>
                        Channel:1
                        Frequency:2.412 GHz (Channel 1)
                        Quality=31/70  Signal level=-79 dBm  
                        Encryption key:on
                        ESSID:"Elsey+Paderborn"
                        Bit Rates:1 Mb/s; 2 Mb/s; 5.5 Mb/s; 11 Mb/s; 6 Mb/s
                                  9 Mb/s; 12 Mb/s; 18 Mb/s
                        Bit Rates:24 Mb/s; 36 Mb/s; 48 Mb/s; 54 Mb/s
                        Mode:Master
                        Extra:tsf=000000072a1bafdb
                        Extra: Last beacon: 560ms ago
                        IE: IEEE 802.11i/WPA2 Version 1
                            Group Cipher : CCMP
                            Pairwise Ciphers (1) : CCMP
                            Authentication Suites (1) : PSK
              Cell 03 - Address: <MAC 'WLAN-750721' [AC3]>
                        Channel:5
                        Frequency:2.432 GHz (Channel 5)
                        Quality=53/70  Signal level=-57 dBm  
                        Encryption key:on
                        ESSID:"WLAN-750721"
                        Bit Rates:1 Mb/s; 2 Mb/s; 5.5 Mb/s; 11 Mb/s; 6 Mb/s
                                  9 Mb/s; 12 Mb/s; 18 Mb/s
                        Bit Rates:24 Mb/s; 36 Mb/s; 48 Mb/s; 54 Mb/s
                        Mode:Master
                        Extra:tsf=000001bc7a7612c3
                        Extra: Last beacon: 428ms ago
                        IE: IEEE 802.11i/WPA2 Version 1
                            Group Cipher : CCMP
                            Pairwise Ciphers (1) : CCMP
                            Authentication Suites (1) : PSK
              Cell 04 - Address: <MAC 'WLANHub' [AC4]>
                        Channel:11
                        Frequency:2.462 GHz (Channel 11)
                        Quality=35/70  Signal level=-75 dBm  
                        Encryption key:on
                        ESSID:"WLANHub"
                        Bit Rates:1 Mb/s; 2 Mb/s; 5.5 Mb/s; 11 Mb/s; 9 Mb/s
                                  18 Mb/s; 36 Mb/s; 54 Mb/s
                        Bit Rates:6 Mb/s; 12 Mb/s; 24 Mb/s; 48 Mb/s
                        Mode:Master
                        Extra:tsf=0000008a6e4d8f22
                        Extra: Last beacon: 156ms ago
                        IE: WPA Version 1
                            Group Cipher : TKIP
                            Pairwise Ciphers (2) : TKIP CCMP
                            Authentication Suites (1) : PSK
                        IE: IEEE 802.11i/WPA2 Version 1
                            Group Cipher : TKIP
                            Pairwise Ciphers (2) : TKIP CCMP
                            Authentication Suites (1) : PSK
              Cell 05 - Address: <MAC 'Unitymedia WifiSpot' [AC5]>
                        Channel:11
                        Frequency:2.462 GHz (Channel 11)
                        Quality=35/70  Signal level=-75 dBm  
                        Encryption key:on
                        ESSID:"Unitymedia WifiSpot"
                        Bit Rates:1 Mb/s; 2 Mb/s; 5.5 Mb/s; 11 Mb/s; 9 Mb/s
                                  18 Mb/s; 36 Mb/s; 54 Mb/s
                        Bit Rates:6 Mb/s; 12 Mb/s; 24 Mb/s; 48 Mb/s
                        Mode:Master
                        Extra:tsf=0000008a6e4da0e1
                        Extra: Last beacon: 196ms ago
                        IE: IEEE 802.11i/WPA2 Version 1
                            Group Cipher : TKIP
                            Pairwise Ciphers (2) : TKIP CCMP
                            Authentication Suites (1) : 802.1x
              Cell 06 - Address: <MAC 'WLAN-750721' [AC6]>
                        Channel:100
                        Frequency:5.5 GHz (Channel 100)
                        Quality=31/70  Signal level=-79 dBm  
                        Encryption key:on
                        ESSID:"WLAN-750721"
                        Bit Rates:6 Mb/s; 9 Mb/s; 12 Mb/s; 18 Mb/s; 24 Mb/s
                                  36 Mb/s; 48 Mb/s; 54 Mb/s
                        Mode:Master
                        Extra:tsf=000001bc7ab1cc2a
                        Extra: Last beacon: 92ms ago
                        IE: IEEE 802.11i/WPA2 Version 1
                            Group Cipher : CCMP
                            Pairwise Ciphers (1) : CCMP
                            Authentication Suites (1) : PSK
              Cell 07 - Address: <MAC 'o2-WLAN88' [AC7]>
                        Channel:10
                        Frequency:2.457 GHz (Channel 10)
                        Quality=42/70  Signal level=-68 dBm  
                        Encryption key:on
                        ESSID:"o2-WLAN88"
                        Bit Rates:1 Mb/s; 2 Mb/s; 5.5 Mb/s; 11 Mb/s; 9 Mb/s
                                  18 Mb/s; 36 Mb/s; 54 Mb/s
                        Bit Rates:6 Mb/s; 12 Mb/s; 24 Mb/s; 48 Mb/s
                        Mode:Master
                        Extra:tsf=0000026c866d34ab
                        Extra: Last beacon: 240ms ago
                        IE: IEEE 802.11i/WPA2 Version 1
                            Group Cipher : CCMP
                            Pairwise Ciphers (1) : CCMP
                            Authentication Suites (1) : PSK
              Cell 08 - Address: <MAC 'UPC99C9542' [AC8]>
                        Channel:11
                        Frequency:2.462 GHz (Channel 11)
                        Quality=28/70  Signal level=-82 dBm  
                        Encryption key:on
                        ESSID:"UPC99C9542"
                        Bit Rates:1 Mb/s; 2 Mb/s; 5.5 Mb/s; 11 Mb/s; 9 Mb/s
                                  18 Mb/s; 36 Mb/s; 54 Mb/s
                        Bit Rates:6 Mb/s; 12 Mb/s; 24 Mb/s; 48 Mb/s
                        Mode:Master
                        Extra:tsf=00000071b3961c9e
                        Extra: Last beacon: 176ms ago
                        IE: WPA Version 1
                            Group Cipher : TKIP
                            Pairwise Ciphers (2) : TKIP CCMP
                            Authentication Suites (1) : PSK
                        IE: IEEE 802.11i/WPA2 Version 1
                            Group Cipher : TKIP
                            Pairwise Ciphers (2) : TKIP CCMP
                            Authentication Suites (1) : PSK
              Cell 09 - Address: <MAC 'Unitymedia WifiSpot' [AC9]>
                        Channel:11
                        Frequency:2.462 GHz (Channel 11)
                        Quality=28/70  Signal level=-82 dBm  
                        Encryption key:on
                        ESSID:"Unitymedia WifiSpot"
                        Bit Rates:1 Mb/s; 2 Mb/s; 5.5 Mb/s; 11 Mb/s; 9 Mb/s
                                  18 Mb/s; 36 Mb/s; 54 Mb/s
                        Bit Rates:6 Mb/s; 12 Mb/s; 24 Mb/s; 48 Mb/s
                        Mode:Master
                        Extra:tsf=00000071b250c10d
                        Extra: Last beacon: 21508ms ago
                        IE: IEEE 802.11i/WPA2 Version 1
                            Group Cipher : TKIP
                            Pairwise Ciphers (2) : TKIP CCMP
                            Authentication Suites (1) : 802.1x
              Cell 10 - Address: <MAC 'UPC3783577' [AC10]>
                        Channel:1
                        Frequency:2.412 GHz (Channel 1)
                        Quality=27/70  Signal level=-83 dBm  
                        Encryption key:on
                        ESSID:"UPC3783577"
                        Bit Rates:1 Mb/s; 2 Mb/s; 5.5 Mb/s; 11 Mb/s; 18 Mb/s
                                  24 Mb/s; 36 Mb/s; 54 Mb/s
                        Bit Rates:6 Mb/s; 9 Mb/s; 12 Mb/s; 48 Mb/s
                        Mode:Master
                        Extra:tsf=000000d134b94ac5
                        Extra: Last beacon: 18912ms ago
                        IE: IEEE 802.11i/WPA2 Version 1
                            Group Cipher : TKIP
                            Pairwise Ciphers (2) : CCMP TKIP
                            Authentication Suites (1) : PSK
                        IE: WPA Version 1
                            Group Cipher : TKIP
                            Pairwise Ciphers (2) : CCMP TKIP
                            Authentication Suites (1) : PSK
    
    ##### module infos ######################
    
    [iwlmvm]
    filename:       /lib/modules/4.15.0-43-generic/kernel/drivers/net/wireless/intel/iwlwifi/mvm/iwlmvm.ko
    license:        GPL
    author:         Copyright(c) 2003- 2015 Intel Corporation <linuxwifi@intel.com>
    description:    The new Intel(R) wireless AGN driver for Linux
    srcversion:     84D6FD7BC225615672A8C5B
    depends:        iwlwifi,mac80211,cfg80211
    retpoline:      Y
    intree:         Y
    name:           iwlmvm
    vermagic:       4.15.0-43-generic SMP mod_unload
    parm:           init_dbg:set to true to debug an ASSERT in INIT fw (default: false (bool)
    parm:           power_scheme:power management scheme: 1-active, 2-balanced, 3-low power, default: 2 (int)
    parm:           tfd_q_hang_detect:TFD queues hang detection (default: true (bool)
    
    [wl]
    filename:       /lib/modules/4.15.0-43-generic/updates/wl.ko
    license:        MIXED/Proprietary
    srcversion:     00D38A27B7E3C7B97C238FC
    depends:        cfg80211
    retpoline:      Y
    name:           wl
    vermagic:       4.15.0-43-generic SMP mod_unload
    parm:           passivemode:int
    parm:           wl_txq_thresh:int
    parm:           oneonly:int
    parm:           piomode:int
    parm:           instance_base:int
    parm:           nompc:int
    parm:           intf_name:string
    
    [mac80211]
    filename:       /lib/modules/4.15.0-43-generic/kernel/net/mac80211/mac80211.ko
    license:        GPL
    description:    IEEE 802.11 subsystem
    srcversion:     10B87D6D65DDD085D1326C9
    depends:        cfg80211
    retpoline:      Y
    intree:         Y
    name:           mac80211
    vermagic:       4.15.0-43-generic SMP mod_unload
    parm:           minstrel_vht_only:Use only VHT rates when VHT is supported by sta. (bool)
    parm:           max_nullfunc_tries:Maximum nullfunc tx tries before disconnecting (reason 4). (int)
    parm:           max_probe_tries:Maximum probe tries before disconnecting (reason 4). (int)
    parm:           beacon_loss_count:Number of beacon intervals before we decide beacon was lost. (int)
    parm:           probe_wait_ms:Maximum time(ms) to wait for probe response before disconnecting (reason 4). (int)
    parm:           ieee80211_default_rc_algo:Default rate control algorithm for mac80211 to use (charp)
    
    [iwlwifi]
    filename:       /lib/modules/4.15.0-43-generic/kernel/drivers/net/wireless/intel/iwlwifi/iwlwifi.ko
    license:        GPL
    author:         Copyright(c) 2003- 2015 Intel Corporation <linuxwifi@intel.com>
    description:    Intel(R) Wireless WiFi driver for Linux
    firmware:       iwlwifi-100-5.ucode
    firmware:       iwlwifi-1000-5.ucode
    firmware:       iwlwifi-135-6.ucode
    firmware:       iwlwifi-105-6.ucode
    firmware:       iwlwifi-2030-6.ucode
    firmware:       iwlwifi-2000-6.ucode
    firmware:       iwlwifi-5150-2.ucode
    firmware:       iwlwifi-5000-5.ucode
    firmware:       iwlwifi-6000g2b-6.ucode
    firmware:       iwlwifi-6000g2a-6.ucode
    firmware:       iwlwifi-6050-5.ucode
    firmware:       iwlwifi-6000-6.ucode
    firmware:       iwlwifi-7265D-29.ucode
    firmware:       iwlwifi-7265-17.ucode
    firmware:       iwlwifi-3168-29.ucode
    firmware:       iwlwifi-3160-17.ucode
    firmware:       iwlwifi-7260-17.ucode
    firmware:       iwlwifi-8265-34.ucode
    firmware:       iwlwifi-8000C-34.ucode
    firmware:       iwlwifi-9260-th-b0-jf-b0-34.ucode
    firmware:       iwlwifi-9260-th-a0-jf-a0-34.ucode
    firmware:       iwlwifi-9000-pu-a0-jf-b0-34.ucode
    firmware:       iwlwifi-9000-pu-b0-jf-b0-34.ucode
    firmware:       iwlwifi-9000-pu-a0-jf-a0-34.ucode
    firmware:       iwlwifi-QuQnj-a0-hr-a0-34.ucode
    firmware:       iwlwifi-QuQnj-a0-jf-b0-34.ucode
    firmware:       iwlwifi-QuQnj-f0-hr-a0-34.ucode
    firmware:       iwlwifi-Qu-a0-jf-b0-34.ucode
    firmware:       iwlwifi-Qu-a0-hr-a0-34.ucode
    srcversion:     773231C3AA2E3CAB7CBD42B
    depends:        cfg80211
    retpoline:      Y
    intree:         Y
    name:           iwlwifi
    vermagic:       4.15.0-43-generic SMP mod_unload
    parm:           swcrypto:using crypto in software (default 0 [hardware]) (int)
    parm:           11n_disable:disable 11n functionality, bitmap: 1: full, 2: disable agg TX, 4: disable agg RX, 8 enable agg TX (uint)
    parm:           amsdu_size:amsdu size 0: 12K for multi Rx queue devices, 4K for other devices 1:4K 2:8K 3:12K (default 0) (int)
    parm:           fw_restart:restart firmware in case of error (default true) (bool)
    parm:           antenna_coupling:specify antenna coupling in dB (default: 0 dB) (int)
    parm:           nvm_file:NVM file name (charp)
    parm:           d0i3_disable:disable d0i3 functionality (default: Y) (bool)
    parm:           lar_disable:disable LAR functionality (default: N) (bool)
    parm:           uapsd_disable:disable U-APSD functionality bitmap 1: BSS 2: P2P Client (default: 3) (uint)
    parm:           bt_coex_active:enable wifi/bt co-exist (default: enable) (bool)
    parm:           led_mode:0=system default, 1=On(RF On)/Off(RF Off), 2=blinking, 3=Off (default: 0) (int)
    parm:           power_save:enable WiFi power management (default: disable) (bool)
    parm:           power_level:default power save level (range from 1 - 5, default: 1) (int)
    parm:           fw_monitor:firmware monitor - to debug FW (default: false - needs lots of memory) (bool)
    parm:           d0i3_timeout:Timeout to D0i3 entry when idle (ms) (uint)
    parm:           disable_11ac:Disable VHT capabilities (default: false) (bool)
    
    [cfg80211]
    filename:       /lib/modules/4.15.0-43-generic/kernel/net/wireless/cfg80211.ko
    description:    wireless configuration support
    license:        GPL
    author:         Johannes Berg
    srcversion:     62FD05DCC5AEEA290640C3D
    depends:        
    retpoline:      Y
    intree:         Y
    name:           cfg80211
    vermagic:       4.15.0-43-generic SMP mod_unload
    parm:           bss_entries_limit:limit to number of scan BSS entries (per wiphy, default 1000) (int)
    parm:           ieee80211_regdom:IEEE 802.11 regulatory domain code (charp)
    parm:           cfg80211_disable_40mhz_24ghz:Disable 40MHz support in the 2.4GHz band (bool)
    
    ##### module parameters #################
    
    [iwlmvm]
    init_dbg: N
    power_scheme: 2
    tfd_q_hang_detect: Y
    
    [mac80211]
    beacon_loss_count: 7
    ieee80211_default_rc_algo: minstrel_ht
    max_nullfunc_tries: 2
    max_probe_tries: 5
    minstrel_vht_only: Y
    probe_wait_ms: 500
    
    [iwlwifi]
    11n_disable: 0
    amsdu_size: 0
    antenna_coupling: 0
    bt_coex_active: Y
    d0i3_disable: Y
    d0i3_timeout: 1000
    disable_11ac: N
    fw_monitor: N
    fw_restart: Y
    lar_disable: N
    led_mode: 0
    nvm_file: (null)
    power_level: 0
    power_save: N
    swcrypto: 0
    uapsd_disable: 3
    
    [cfg80211]
    bss_entries_limit: 1000
    cfg80211_disable_40mhz_24ghz: N
    ieee80211_regdom: 00
    
    ##### /etc/modules ######################
    
    ##### modprobe options ##################
    
    [/etc/modprobe.d/blacklist-ath_pci.conf]
    blacklist ath_pci
    
    [/etc/modprobe.d/blacklist-bcm43.conf]
    blacklist b43
    blacklist b43legacy
    blacklist ssb
    blacklist bcm43xx
    blacklist brcm80211
    blacklist brcmfmac
    blacklist brcmsmac
    blacklist bcma
    
    [/etc/modprobe.d/blacklist.conf]
    blacklist evbug
    blacklist usbmouse
    blacklist usbkbd
    blacklist eepro100
    blacklist de4x5
    blacklist eth1394
    blacklist snd_intel8x0m
    blacklist snd_aw2
    blacklist prism54
    blacklist bcm43xx
    blacklist garmin_gps
    blacklist asus_acpi
    blacklist snd_pcsp
    blacklist pcspkr
    blacklist amd76x_edac
    
    [/etc/modprobe.d/blacklist-rare-network.conf]
    alias net-pf-3 off
    alias net-pf-6 off
    alias net-pf-9 off
    alias net-pf-11 off
    alias net-pf-12 off
    alias net-pf-19 off
    alias net-pf-21 off
    alias net-pf-36 off
    
    [/etc/modprobe.d/intel-microcode-blacklist.conf]
    blacklist microcode
    
    [/etc/modprobe.d/iwlwifi.conf]
    remove iwlwifi \
    (/sbin/lsmod | grep -o -e ^iwlmvm -e ^iwldvm -e ^iwlwifi | xargs /sbin/rmmod) \
    && /sbin/modprobe -r mac80211
    
    [/etc/modprobe.d/mlx4.conf]
    softdep mlx4_core post: mlx4_en
    
    ##### rc.local ##########################
    
    mount -t ext4 /dev/sdb3 /media/norbert/DATA
    
    mount --bind /media/norbert/DATA/Bilder  /home/norbert/Bilder
    mount --bind /media/norbert/DATA/Videos  /home/norbert/Videos
    mount --bind /media/norbert/DATA/Musik  /home/norbert/Musik
    
    exit 0
    
    ##### pm-utils ##########################
    
    ##### udev rules ########################
    
    ##### dmesg #############################
    
    [    3.246415] iwlwifi 0000:01:00.0: loaded firmware version 34.0.1 op_mode iwlmvm
    [    3.258606] wl: loading out-of-tree module taints kernel.
    [    3.258609] wl: module license 'MIXED/Proprietary' taints kernel.
    [    3.261444] wl: module verification failed: signature and/or required key missing - tainting kernel
    [    3.268641] iwlwifi 0000:01:00.0: Detected Intel(R) Dual Band Wireless AC 8260, REV=0x208
    [    3.339734] iwlwifi 0000:01:00.0: base HW address: <MAC 'wlp1s0' [IF2]>
    [    3.415700] ieee80211 phy0: Selected rate control algorithm 'iwl-mvm-rs'
    [    3.416806] iwlwifi 0000:01:00.0 wlp1s0: renamed from wlan0
    [    3.859588] IPv6: ADDRCONF(NETDEV_UP): wlp1s0: link is not ready
    [    3.861522] IPv6: ADDRCONF(NETDEV_UP): enp2s0: link is not ready
    [    3.922564] r8169 0000:02:00.0 enp2s0: link down
    [    3.922645] IPv6: ADDRCONF(NETDEV_UP): enp2s0: link is not ready
    [  561.564077] IPv6: ADDRCONF(NETDEV_UP): wlp1s0: link is not ready (repeated 2 times)
    [  569.899781] wlp1s0: authenticate with <MAC 'MAJOR-TOM' [AC1]>
    [  569.902449] wlp1s0: send auth to <MAC 'MAJOR-TOM' [AC1]> (try 1/3)
    [  569.911807] wlp1s0: authenticated
    [  569.913285] wlp1s0: associate with <MAC 'MAJOR-TOM' [AC1]> (try 1/3)
    [  569.935473] wlp1s0: RX AssocResp from <MAC 'MAJOR-TOM' [AC1]> (capab=0x431 status=0 aid=1)
    [  569.938143] wlp1s0: associated
    [  569.974796] IPv6: ADDRCONF(NETDEV_CHANGE): wlp1s0: link becomes ready
    [  601.017357] wlp1s0: deauthenticating from <MAC 'MAJOR-TOM' [AC1]> by local choice (Reason: 3=DEAUTH_LEAVING)
    
    ########## wireless info END ############

  2. #2
    Join Date
    May 2014
    Location
    /home
    Beans
    10,942
    Distro
    Ubuntu 20.04 Focal Fossa

    Re: WiFi connection instantly disconnects

    Code:
     sudo sed -i 's/3/2/' /etc/NetworkManager/conf.d/*
    sudo apt remove bcmwl-kernel-source
    Reboot

  3. #3
    Join Date
    Sep 2018
    Beans
    9

    Re: WiFi connection instantly disconnects

    thanks for your quick response!
    no change; wi-fi gets instantly disconnected after connection established.
    system message: “disconnected - you are now offline”

    Code:
    ########## wireless info START ##########
    
    Report from: 11 Jan 2019 15:56 CET +0100
    
    Booted last: 11 Jan 2019 00:00 CET +0100
    
    Script from: 22 Oct 2018 03:34 UTC +0000
    
    ##### release ###########################
    
    Distributor ID:    LinuxMint
    Description:    Linux Mint 18.3 Sylvia
    Release:    18.3
    Codename:    sylvia
    
    ##### kernel ############################
    
    Linux 4.15.0-43-generic #46~16.04.1-Ubuntu SMP Fri Dec 7 13:31:08 UTC 2018 x86_64 x86_64 x86_64 GNU/Linux
    
    Parameters: ro, quiet, splash, vt.handoff=7
    
    ##### desktop ###########################
    
    Cinnamon
    
    ##### lspci #############################
    
    01:00.0 Network controller [0280]: Intel Corporation Wireless 8260 [8086:24f3] (rev 3a)
        Subsystem: Intel Corporation Dual Band Wireless-AC 8260 [8086:0010]
        Kernel driver in use: iwlwifi
    
    02:00.0 Ethernet controller [0200]: Realtek Semiconductor Co., Ltd.  RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller [10ec:8168]  (rev 15)
        Subsystem: Micro-Star International Co., Ltd. [MSI] RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller [1462:7a70]
        Kernel driver in use: r8169
    
    ##### lsusb #############################
    
    Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
    Bus 001 Device 004: ID 0461:4d22 Primax Electronics, Ltd 
    Bus 001 Device 003: ID 046a:0023 Cherry GmbH CyMotion Master Linux Keyboard G230
    Bus 001 Device 002: ID 04a9:1801 Canon, Inc. 
    Bus 001 Device 006: ID 0bda:0111 Realtek Semiconductor Corp. RTS5111 Card Reader Controller
    Bus 001 Device 005: ID 090c:1000 Silicon Motion, Inc. - Taiwan (formerly Feiya Technology Corp.) Flash Drive
    Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
    
    ##### PCMCIA card info ##################
    
    ##### rfkill ############################
    
    0: phy0: Wireless LAN
        Soft blocked: no
        Hard blocked: no
    
    ##### secure boot #######################
    
    'mokutil' is not installed (package "mokutil").
    
    ##### lsmod #############################
    
    iwlmvm                364544  0
    mac80211              778240  1 iwlmvm
    iwlwifi               282624  1 iwlmvm
    cfg80211              622592  3 iwlmvm,iwlwifi,mac80211
    intel_wmi_thunderbolt    16384  0
    mxm_wmi                16384  0
    wmi                    24576  2 intel_wmi_thunderbolt,mxm_wmi
    
    ##### interfaces ########################
    
    [/etc/network/interfaces]
    auto lo
    iface lo inet loopback 
    
    ##### ifconfig ##########################
    
    1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN group default qlen 1000
        link/loopback <MAC address> brd <MAC address>
        inet 127.0.0.1/8 scope host lo
           valid_lft forever preferred_lft forever
        inet6 ::1/128 scope host 
           valid_lft forever preferred_lft forever
    2: enp2s0: <NO-CARRIER,BROADCAST,MULTICAST,UP> mtu 1500 qdisc pfifo_fast state DOWN group default qlen 1000
        link/ether <MAC 'enp2s0' [IF1]> brd <MAC address>
    3: wlp1s0: <NO-CARRIER,BROADCAST,MULTICAST,UP> mtu 1500 qdisc mq state DOWN group default qlen 1000
        link/ether <MAC 'wlp1s0' [IF2]> brd <MAC address>
    
    ##### iwconfig ##########################
    
    enp2s0    no wireless extensions.
    
    lo        no wireless extensions.
    
    wlp1s0    IEEE 802.11  ESSID:eek:ff/any  
              Mode:Managed  Access Point: Not-Associated   Tx-Power=22 dBm   
              Retry short limit:7   RTS thr:eek:ff   Fragment thr:eek:ff
              Power Management:eek:ff
              
    
    ##### route #############################
    
    ##### resolv.conf #######################
    
    [777 root '/etc/resolv.conf' -> '../run/resolvconf/resolv.conf']
    
    ##### network managers ##################
    
    Installed:
    
        NetworkManager
    
    Running:
    
    root       969     1  0 15:55 ?        00:00:00 /usr/sbin/NetworkManager --no-daemon
    
    ##### NetworkManager info ###############
    
    GENERAL.DEVICE:                         wlp1s0
    GENERAL.TYPE:                           wifi
    GENERAL.NM-TYPE:                        NMDeviceWifi
    GENERAL.VENDOR:                         Intel Corporation
    GENERAL.PRODUCT:                        Wireless 8260 (Dual Band Wireless-AC 8260)
    GENERAL.DRIVER:                         iwlwifi
    GENERAL.DRIVER-VERSION:                 4.15.0-43-generic
    GENERAL.FIRMWARE-VERSION:               34.0.1
    GENERAL.HWADDR:                         <MAC 'wlp1s0' [IF2]>
    GENERAL.MTU:                            0
    GENERAL.STATE:                          30 (disconnected)
    GENERAL.REASON:                         0 (No reason given)
    GENERAL.UDI:                            /sys/devices/pci0000:00/0000:00:1c.0/0000:01:00.0/net/wlp1s0
    GENERAL.IP-IFACE:                       
    GENERAL.IS-SOFTWARE:                    no
    GENERAL.NM-MANAGED:                     yes
    GENERAL.AUTOCONNECT:                    yes
    GENERAL.FIRMWARE-MISSING:               no
    GENERAL.NM-PLUGIN-MISSING:              no
    GENERAL.PHYS-PORT-ID:                   --
    GENERAL.CONNECTION:                     --
    GENERAL.CON-UUID:                       --
    GENERAL.CON-PATH:                       --
    GENERAL.METERED:                        unknown
    CAPABILITIES.CARRIER-DETECT:            no
    CAPABILITIES.SPEED:                     unknown
    CAPABILITIES.IS-SOFTWARE:               no
    WIFI-PROPERTIES.WEP:                    yes
    WIFI-PROPERTIES.WPA:                    yes
    WIFI-PROPERTIES.WPA2:                   yes
    WIFI-PROPERTIES.TKIP:                   yes
    WIFI-PROPERTIES.CCMP:                   yes
    WIFI-PROPERTIES.AP:                     yes
    WIFI-PROPERTIES.ADHOC:                  yes
    WIFI-PROPERTIES.2GHZ:                   yes
    WIFI-PROPERTIES.5GHZ:                   yes
    CONNECTIONS.AVAILABLE-CONNECTION-PATHS: /org/freedesktop/NetworkManager/Settings/{1}
    CONNECTIONS.AVAILABLE-CONNECTIONS[1]:   e748ac0b-32ba-4199-9f6e-cc13e65012ed | MAJOR-TOM
    
    GENERAL.DEVICE:                         enp2s0
    GENERAL.TYPE:                           ethernet
    GENERAL.NM-TYPE:                        NMDeviceEthernet
    GENERAL.VENDOR:                         Realtek Semiconductor Co., Ltd.
    GENERAL.PRODUCT:                        RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller
    GENERAL.DRIVER:                         r8169
    GENERAL.DRIVER-VERSION:                 2.3LK-NAPI
    GENERAL.FIRMWARE-VERSION:               
    GENERAL.HWADDR:                         <MAC 'enp2s0' [IF1]>
    GENERAL.MTU:                            1500
    GENERAL.STATE:                          20 (unavailable)
    GENERAL.REASON:                         2 (Device is now managed)
    GENERAL.UDI:                            /sys/devices/pci0000:00/0000:00:1c.6/0000:02:00.0/net/enp2s0
    GENERAL.IP-IFACE:                       
    GENERAL.IS-SOFTWARE:                    no
    GENERAL.NM-MANAGED:                     yes
    GENERAL.AUTOCONNECT:                    yes
    GENERAL.FIRMWARE-MISSING:               no
    GENERAL.NM-PLUGIN-MISSING:              no
    GENERAL.PHYS-PORT-ID:                   --
    GENERAL.CONNECTION:                     --
    GENERAL.CON-UUID:                       --
    GENERAL.CON-PATH:                       --
    GENERAL.METERED:                        unknown
    CAPABILITIES.CARRIER-DETECT:            yes
    CAPABILITIES.SPEED:                     unknown
    CAPABILITIES.IS-SOFTWARE:               no
    WIRED-PROPERTIES.CARRIER:               off
    CONNECTIONS.AVAILABLE-CONNECTION-PATHS: 
    
    SSID                 BSSID              MODE   CHAN  FREQ      RATE       SIGNAL  BARS  SECURITY     ACTIVE  * 
    MAJOR-TOM            <MAC 'MAJOR-TOM' [AC1]>  Infra  1     2412 MHz  54 Mbit/s  99      ▂▄▆█  WPA1 WPA2    no        
    WLAN-750721          <MAC 'WLAN-750721' [AC3]>  Infra  5     2432 MHz  54 Mbit/s  79      ▂▄▆_  WPA2         no        
    o2-WLAN88            <MAC 'o2-WLAN88' [AC4]>  Infra  10    2457 MHz  54 Mbit/s  49      ▂▄__  WPA2         no        
    Elsey+Paderborn      <MAC 'Elsey+Paderborn' [AC2]>  Infra  1      2412 MHz  54 Mbit/s  40      ▂▄__  WPA2         no        
    Unitymedia WifiSpot  <MAC 'Unitymedia WifiSpot' [AC6]>  Infra  11     2462 MHz  54 Mbit/s  40      ▂▄__  WPA2 802.1X  no        
    WLANHub              <MAC 'WLANHub' [AC5]>  Infra  11    2462 MHz  54 Mbit/s  40      ▂▄__  WPA1 WPA2    no        
    WLAN-750721          <MAC 'WLAN-750721' [AC7]>  Infra  100   5500 MHz  54 Mbit/s  35      ▂▄__  WPA2         no        
    WLAN-UDZS47          <MAC 'WLAN-UDZS47' [AC8]>  Infra  6     2437 MHz  54 Mbit/s  29      ▂___  WPA2         no        
    
    ##### NetworkManager.state ##############
    
    [main]
    NetworkingEnabled=true
    WirelessEnabled=true
    WWANEnabled=true
    
    ##### NetworkManager config #############
    
    [[/etc/NetworkManager/conf.d/default-wifi-powersave-on.conf]]
    [connection]
    wifi.powersave = 2
    
    [[/etc/NetworkManager/NetworkManager.conf]]
    [main]
    plugins=ifupdown,keyfile,ofono
    dns=dnsmasq
    [ifupdown]
    managed=false
    
    ##### NetworkManager profiles ###########
    
    [[/etc/NetworkManager/system-connections/MAJOR-TOM]] (600 root)
    [connection] id=MAJOR-TOM | type=wifi | autoconnect=false | permissions=user:norbert:;
    [wifi] mac-address=<MAC 'wlp1s0' [IF2]> | mac-address-blacklist= | ssid=MAJOR-TOM
    [ipv4] method=auto
    [ipv6] method=auto
    
    ##### Netplan config ####################
    
    ##### iw reg get ########################
    
    Region: Europe/Berlin (based on set time zone)
    
    country 00: DFS-UNSET
        (2402 - 2472 @ 40), (6, 20), (N/A)
        (2457 - 2482 @ 20), (6, 20), (N/A), PASSIVE-SCAN
        (2474 - 2494 @ 20), (6, 20), (N/A), NO-OFDM, PASSIVE-SCAN
        (5170 - 5250 @ 80), (6, 20), (N/A), PASSIVE-SCAN
        (5250 - 5330 @ 80), (6, 20), (0 ms), DFS, PASSIVE-SCAN
        (5490 - 5730 @ 160), (6, 20), (0 ms), DFS, PASSIVE-SCAN
        (5735 - 5835 @ 80), (6, 20), (N/A), PASSIVE-SCAN
        (57240 - 63720 @ 2160), (N/A, 0), (N/A)
    
    ##### iwlist channels ###################
    
    enp2s0    no frequency information.
    
    lo        no frequency information.
    
    wlp1s0    32 channels in total; available frequencies :
              Channel 01 : 2.412 GHz
              Channel 02 : 2.417 GHz
              Channel 03 : 2.422 GHz
              Channel 04 : 2.427 GHz
              Channel 05 : 2.432 GHz
              Channel 06 : 2.437 GHz
              Channel 07 : 2.442 GHz
              Channel 08 : 2.447 GHz
              Channel 09 : 2.452 GHz
              Channel 10 : 2.457 GHz
              Channel 11 : 2.462 GHz
              Channel 12 : 2.467 GHz
              Channel 13 : 2.472 GHz
              Channel 36 : 5.18 GHz
              Channel 40 : 5.2 GHz
              Channel 44 : 5.22 GHz
              Channel 48 : 5.24 GHz
              Channel 52 : 5.26 GHz
              Channel 56 : 5.28 GHz
              Channel 60 : 5.3 GHz
              Channel 64 : 5.32 GHz
              Channel 100 : 5.5 GHz
              Channel 104 : 5.52 GHz
              Channel 108 : 5.54 GHz
              Channel 112 : 5.56 GHz
              Channel 116 : 5.58 GHz
              Channel 120 : 5.6 GHz
              Channel 124 : 5.62 GHz
              Channel 128 : 5.64 GHz
              Channel 132 : 5.66 GHz
              Channel 136 : 5.68 GHz
              Channel 140 : 5.7 GHz
    
    ##### iwlist scan #######################
    
    enp2s0    Interface doesn't support scanning.
    
    lo        Interface doesn't support scanning.
    
    Channel occupancy:
    
          2   APs on   Frequency:2.412 GHz (Channel 1)
          1   APs on   Frequency:2.432 GHz (Channel 5)
          1   APs on   Frequency:2.437 GHz (Channel 6)
          1   APs on   Frequency:2.457 GHz (Channel 10)
          2   APs on   Frequency:2.462 GHz (Channel 11)
          1   APs on   Frequency:5.5 GHz (Channel 100)
    
    wlp1s0    Scan completed :
              Cell 01 - Address: <MAC 'MAJOR-TOM' [AC1]>
                        Channel:1
                        Frequency:2.412 GHz (Channel 1)
                        Quality=70/70  Signal level=-39 dBm  
                        Encryption key:eek:n
                        ESSID:"MAJOR-TOM"
                        Bit Rates:1 Mb/s; 2 Mb/s; 5.5 Mb/s; 11 Mb/s; 6 Mb/s
                                  9 Mb/s; 12 Mb/s; 18 Mb/s
                        Bit Rates:24 Mb/s; 36 Mb/s; 48 Mb/s; 54 Mb/s
                        Mode:Master
                        Extra:tsf=000000000912074e
                        Extra: Last beacon: 2600ms ago
                        IE: IEEE 802.11i/WPA2 Version 1
                            Group Cipher : TKIP
                            Pairwise Ciphers (1) : CCMP
                            Authentication Suites (1) : PSK
                        IE: WPA Version 1
                            Group Cipher : TKIP
                            Pairwise Ciphers (1) : TKIP
                            Authentication Suites (1) : PSK
              Cell 02 - Address: <MAC 'Elsey+Paderborn' [AC2]>
                        Channel:1
                        Frequency:2.412 GHz (Channel 1)
                        Quality=32/70  Signal level=-78 dBm  
                        Encryption key:eek:n
                        ESSID:"Elsey+Paderborn"
                        Bit Rates:1 Mb/s; 2 Mb/s; 5.5 Mb/s; 11 Mb/s; 6 Mb/s
                                  9 Mb/s; 12 Mb/s; 18 Mb/s
                        Bit Rates:24 Mb/s; 36 Mb/s; 48 Mb/s; 54 Mb/s
                        Mode:Master
                        Extra:tsf=00000008525c525a
                        Extra: Last beacon: 2944ms ago
                        IE: IEEE 802.11i/WPA2 Version 1
                            Group Cipher : CCMP
                            Pairwise Ciphers (1) : CCMP
                            Authentication Suites (1) : PSK
              Cell 03 - Address: <MAC 'WLAN-750721' [AC3]>
                        Channel:5
                        Frequency:2.432 GHz (Channel 5)
                        Quality=58/70  Signal level=-52 dBm  
                        Encryption key:eek:n
                        ESSID:"WLAN-750721"
                        Bit Rates:1 Mb/s; 2 Mb/s; 5.5 Mb/s; 11 Mb/s; 6 Mb/s
                                  9 Mb/s; 12 Mb/s; 18 Mb/s
                        Bit Rates:24 Mb/s; 36 Mb/s; 48 Mb/s; 54 Mb/s
                        Mode:Master
                        Extra:tsf=000001bda34ae5b7
                        Extra: Last beacon: 2724ms ago
                        IE: IEEE 802.11i/WPA2 Version 1
                            Group Cipher : CCMP
                            Pairwise Ciphers (1) : CCMP
                            Authentication Suites (1) : PSK
              Cell 04 - Address: <MAC 'o2-WLAN88' [AC4]>
                        Channel:10
                        Frequency:2.457 GHz (Channel 10)
                        Quality=42/70  Signal level=-68 dBm  
                        Encryption key:eek:n
                        ESSID:"o2-WLAN88"
                        Bit Rates:1 Mb/s; 2 Mb/s; 5.5 Mb/s; 11 Mb/s; 9 Mb/s
                                  18 Mb/s; 36 Mb/s; 54 Mb/s
                        Bit Rates:6 Mb/s; 12 Mb/s; 24 Mb/s; 48 Mb/s
                        Mode:Master
                        Extra:tsf=0000026daf4029b7
                        Extra: Last beacon: 2568ms ago
                        IE: IEEE 802.11i/WPA2 Version 1
                            Group Cipher : CCMP
                            Pairwise Ciphers (1) : CCMP
                            Authentication Suites (1) : PSK
              Cell 05 - Address: <MAC 'WLANHub' [AC5]>
                        Channel:11
                        Frequency:2.462 GHz (Channel 11)
                        Quality=27/70  Signal level=-83 dBm  
                        Encryption key:eek:n
                        ESSID:"WLANHub"
                        Bit Rates:1 Mb/s; 2 Mb/s; 5.5 Mb/s; 11 Mb/s; 9 Mb/s
                                  18 Mb/s; 36 Mb/s; 54 Mb/s
                        Bit Rates:6 Mb/s; 12 Mb/s; 24 Mb/s; 48 Mb/s
                        Mode:Master
                        Extra:tsf=0000008b97217dbd
                        Extra: Last beacon: 2528ms ago
                        IE: WPA Version 1
                            Group Cipher : TKIP
                            Pairwise Ciphers (2) : TKIP CCMP
                            Authentication Suites (1) : PSK
                        IE: IEEE 802.11i/WPA2 Version 1
                            Group Cipher : TKIP
                            Pairwise Ciphers (2) : TKIP CCMP
                            Authentication Suites (1) : PSK
              Cell 06 - Address: <MAC 'Unitymedia WifiSpot' [AC6]>
                        Channel:11
                        Frequency:2.462 GHz (Channel 11)
                        Quality=27/70  Signal level=-83 dBm  
                        Encryption key:eek:n
                        ESSID:"Unitymedia WifiSpot"
                        Bit Rates:1 Mb/s; 2 Mb/s; 5.5 Mb/s; 11 Mb/s; 9 Mb/s
                                  18 Mb/s; 36 Mb/s; 54 Mb/s
                        Bit Rates:6 Mb/s; 12 Mb/s; 24 Mb/s; 48 Mb/s
                        Mode:Master
                        Extra:tsf=0000008b9721a0f2
                        Extra: Last beacon: 2520ms ago
                        IE: IEEE 802.11i/WPA2 Version 1
                            Group Cipher : TKIP
                            Pairwise Ciphers (2) : TKIP CCMP
                            Authentication Suites (1) : 802.1x
              Cell 07 - Address: <MAC 'WLAN-750721' [AC7]>
                        Channel:100
                        Frequency:5.5 GHz (Channel 100)
                        Quality=37/70  Signal level=-73 dBm  
                        Encryption key:eek:n
                        ESSID:"WLAN-750721"
                        Bit Rates:6 Mb/s; 9 Mb/s; 12 Mb/s; 18 Mb/s; 24 Mb/s
                                  36 Mb/s; 48 Mb/s; 54 Mb/s
                        Mode:Master
                        Extra:tsf=000001bda393f84e
                        Extra: Last beacon: 1504ms ago
                        IE: IEEE 802.11i/WPA2 Version 1
                            Group Cipher : CCMP
                            Pairwise Ciphers (1) : CCMP
                            Authentication Suites (1) : PSK
              Cell 08 - Address: <MAC 'WLAN-UDZS47' [AC8]>
                        Channel:6
                        Frequency:2.437 GHz (Channel 6)
                        Quality=27/70  Signal level=-83 dBm  
                        Encryption key:eek:n
                        ESSID:"WLAN-UDZS47"
                        Bit Rates:1 Mb/s; 2 Mb/s; 5.5 Mb/s; 11 Mb/s; 18 Mb/s
                                  24 Mb/s; 36 Mb/s; 54 Mb/s
                        Bit Rates:6 Mb/s; 9 Mb/s; 12 Mb/s; 48 Mb/s
                        Mode:Master
                        Extra:tsf=000001211e439640
                        Extra: Last beacon: 15372ms ago
                        IE: IEEE 802.11i/WPA2 Version 1
                            Group Cipher : CCMP
                            Pairwise Ciphers (1) : CCMP
                            Authentication Suites (1) : PSK
    
    ##### module infos ######################
    
    [iwlmvm]
    filename:       /lib/modules/4.15.0-43-generic/kernel/drivers/net/wireless/intel/iwlwifi/mvm/iwlmvm.ko
    license:        GPL
    author:         Copyright(c) 2003- 2015 Intel Corporation <linuxwifi@intel.com>
    description:    The new Intel(R) wireless AGN driver for Linux
    srcversion:     84D6FD7BC225615672A8C5B
    depends:        iwlwifi,mac80211,cfg80211
    retpoline:      Y
    intree:         Y
    name:           iwlmvm
    vermagic:       4.15.0-43-generic SMP mod_unload 
    parm:           init_dbg:set to true to debug an ASSERT in INIT fw (default: false (bool)
    parm:           power_scheme:razz:ower management scheme: 1-active, 2-balanced, 3-low power, default: 2 (int)
    parm:           tfd_q_hang_detect:TFD queues hang detection (default: true (bool)
    
    [mac80211]
    filename:       /lib/modules/4.15.0-43-generic/kernel/net/mac80211/mac80211.ko
    license:        GPL
    description:    IEEE 802.11 subsystem
    srcversion:     10B87D6D65DDD085D1326C9
    depends:        cfg80211
    retpoline:      Y
    intree:         Y
    name:           mac80211
    vermagic:       4.15.0-43-generic SMP mod_unload 
    parm:           minstrel_vht_only:Use only VHT rates when VHT is supported by sta. (bool)
    parm:           max_nullfunc_tries:Maximum nullfunc tx tries before disconnecting (reason 4). (int)
    parm:           max_probe_tries:Maximum probe tries before disconnecting (reason 4). (int)
    parm:           beacon_loss_count:Number of beacon intervals before we decide beacon was lost. (int)
    parm:           probe_wait_ms:Maximum time(ms) to wait for probe response before disconnecting (reason 4). (int)
    parm:           ieee80211_default_rc_algo:grin:efault rate control algorithm for mac80211 to use (charp)
    
    [iwlwifi]
    filename:       /lib/modules/4.15.0-43-generic/kernel/drivers/net/wireless/intel/iwlwifi/iwlwifi.ko
    license:        GPL
    author:         Copyright(c) 2003- 2015 Intel Corporation <linuxwifi@intel.com>
    description:    Intel(R) Wireless WiFi driver for Linux
    firmware:       iwlwifi-100-5.ucode
    firmware:       iwlwifi-1000-5.ucode
    firmware:       iwlwifi-135-6.ucode
    firmware:       iwlwifi-105-6.ucode
    firmware:       iwlwifi-2030-6.ucode
    firmware:       iwlwifi-2000-6.ucode
    firmware:       iwlwifi-5150-2.ucode
    firmware:       iwlwifi-5000-5.ucode
    firmware:       iwlwifi-6000g2b-6.ucode
    firmware:       iwlwifi-6000g2a-6.ucode
    firmware:       iwlwifi-6050-5.ucode
    firmware:       iwlwifi-6000-6.ucode
    firmware:       iwlwifi-7265D-29.ucode
    firmware:       iwlwifi-7265-17.ucode
    firmware:       iwlwifi-3168-29.ucode
    firmware:       iwlwifi-3160-17.ucode
    firmware:       iwlwifi-7260-17.ucode
    firmware:       iwlwifi-8265-34.ucode
    firmware:       iwlwifi-8000C-34.ucode
    firmware:       iwlwifi-9260-th-b0-jf-b0-34.ucode
    firmware:       iwlwifi-9260-th-a0-jf-a0-34.ucode
    firmware:       iwlwifi-9000-pu-a0-jf-b0-34.ucode
    firmware:       iwlwifi-9000-pu-b0-jf-b0-34.ucode
    firmware:       iwlwifi-9000-pu-a0-jf-a0-34.ucode
    firmware:       iwlwifi-QuQnj-a0-hr-a0-34.ucode
    firmware:       iwlwifi-QuQnj-a0-jf-b0-34.ucode
    firmware:       iwlwifi-QuQnj-f0-hr-a0-34.ucode
    firmware:       iwlwifi-Qu-a0-jf-b0-34.ucode
    firmware:       iwlwifi-Qu-a0-hr-a0-34.ucode
    srcversion:     773231C3AA2E3CAB7CBD42B
    depends:        cfg80211
    retpoline:      Y
    intree:         Y
    name:           iwlwifi
    vermagic:       4.15.0-43-generic SMP mod_unload 
    parm:           swcrypto:using crypto in software (default 0 [hardware]) (int)
    parm:           11n_disable:disable 11n functionality, bitmap: 1: full,  2: disable agg TX, 4: disable agg RX, 8 enable agg TX (uint)
    parm:           amsdu_size:amsdu size 0: 12K for multi Rx queue devices, 4K for other devices 1:4K 2:8K 3:12K (default 0) (int)
    parm:           fw_restart:restart firmware in case of error (default true) (bool)
    parm:           antenna_coupling:specify antenna coupling in dB (default: 0 dB) (int)
    parm:           nvm_file:NVM file name (charp)
    parm:           d0i3_disable:disable d0i3 functionality (default: Y) (bool)
    parm:           lar_disable:disable LAR functionality (default: N) (bool)
    parm:           uapsd_disable:disable U-APSD functionality bitmap 1: BSS 2: P2P Client (default: 3) (uint)
    parm:           bt_coex_active:enable wifi/bt co-exist (default: enable) (bool)
    parm:           led_mode:0=system default, 1=On(RF On)/Off(RF Off), 2=blinking, 3=Off (default: 0) (int)
    parm:           power_save:enable WiFi power management (default: disable) (bool)
    parm:           power_level:default power save level (range from 1 - 5, default: 1) (int)
    parm:           fw_monitor:firmware monitor - to debug FW (default: false - needs lots of memory) (bool)
    parm:           d0i3_timeout:Timeout to D0i3 entry when idle (ms) (uint)
    parm:           disable_11ac:grin:isable VHT capabilities (default: false) (bool)
    
    [cfg80211]
    filename:       /lib/modules/4.15.0-43-generic/kernel/net/wireless/cfg80211.ko
    description:    wireless configuration support
    license:        GPL
    author:         Johannes Berg
    srcversion:     62FD05DCC5AEEA290640C3D
    depends:        
    retpoline:      Y
    intree:         Y
    name:           cfg80211
    vermagic:       4.15.0-43-generic SMP mod_unload 
    parm:           bss_entries_limit:limit to number of scan BSS entries (per wiphy, default 1000) (int)
    parm:           ieee80211_regdom:IEEE 802.11 regulatory domain code (charp)
    parm:           cfg80211_disable_40mhz_24ghz:grin:isable 40MHz support in the 2.4GHz band (bool)
    
    ##### module parameters #################
    
    [iwlmvm]
    init_dbg: N
    power_scheme: 2
    tfd_q_hang_detect: Y
    
    [mac80211]
    beacon_loss_count: 7
    ieee80211_default_rc_algo: minstrel_ht
    max_nullfunc_tries: 2
    max_probe_tries: 5
    minstrel_vht_only: Y
    probe_wait_ms: 500
    
    [iwlwifi]
    11n_disable: 0
    amsdu_size: 0
    antenna_coupling: 0
    bt_coex_active: Y
    d0i3_disable: Y
    d0i3_timeout: 1000
    disable_11ac: N
    fw_monitor: N
    fw_restart: Y
    lar_disable: N
    led_mode: 0
    nvm_file: (null)
    power_level: 0
    power_save: N
    swcrypto: 0
    uapsd_disable: 3
    
    [cfg80211]
    bss_entries_limit: 1000
    cfg80211_disable_40mhz_24ghz: N
    ieee80211_regdom: 00
    
    ##### /etc/modules ######################
    
    ##### modprobe options ##################
    
    [/etc/modprobe.d/blacklist-ath_pci.conf]
    blacklist ath_pci
    
    [/etc/modprobe.d/blacklist.conf]
    blacklist evbug
    blacklist usbmouse
    blacklist usbkbd
    blacklist eepro100
    blacklist de4x5
    blacklist eth1394
    blacklist snd_intel8x0m
    blacklist snd_aw2
    blacklist prism54
    blacklist bcm43xx
    blacklist garmin_gps
    blacklist asus_acpi
    blacklist snd_pcsp
    blacklist pcspkr
    blacklist amd76x_edac
    
    [/etc/modprobe.d/blacklist-rare-network.conf]
    alias net-pf-3 off
    alias net-pf-6 off
    alias net-pf-9 off
    alias net-pf-11 off
    alias net-pf-12 off
    alias net-pf-19 off
    alias net-pf-21 off
    alias net-pf-36 off
    
    [/etc/modprobe.d/intel-microcode-blacklist.conf]
    blacklist microcode
    
    [/etc/modprobe.d/iwlwifi.conf]
    remove iwlwifi \
    (/sbin/lsmod | grep -o -e ^iwlmvm -e ^iwldvm -e ^iwlwifi | xargs /sbin/rmmod) \
    && /sbin/modprobe -r mac80211
    
    [/etc/modprobe.d/mlx4.conf]
    softdep mlx4_core post: mlx4_en
    
    ##### rc.local ##########################
    
    mount -t ext4 /dev/sdb3 /media/norbert/DATA
    
    mount --bind /media/norbert/DATA/Bilder  /home/norbert/Bilder
    mount --bind /media/norbert/DATA/Videos  /home/norbert/Videos
    mount --bind /media/norbert/DATA/Musik  /home/norbert/Musik
    
    exit 0
    
    ##### pm-utils ##########################
    
    ##### udev rules ########################
    
    ##### dmesg #############################
    
    [    3.252262] iwlwifi 0000:01:00.0: loaded firmware version 34.0.1 op_mode iwlmvm
    [    3.274326] iwlwifi 0000:01:00.0: Detected Intel(R) Dual Band Wireless AC 8260, REV=0x208
    [    3.355514] iwlwifi 0000:01:00.0: base HW address: <MAC 'wlp1s0' [IF2]>
    [    3.431969] ieee80211 phy0: Selected rate control algorithm 'iwl-mvm-rs'
    [    3.433857] iwlwifi 0000:01:00.0 wlp1s0: renamed from wlan0
    [    3.745458] IPv6: ADDRCONF(NETDEV_UP): wlp1s0: link is not ready (repeated 2 times)
    [    3.983147] IPv6: ADDRCONF(NETDEV_UP): enp2s0: link is not ready
    [    4.042659] r8169 0000:02:00.0 enp2s0: link down
    [    4.042740] IPv6: ADDRCONF(NETDEV_UP): enp2s0: link is not ready
    [    4.103166] IPv6: ADDRCONF(NETDEV_UP): wlp1s0: link is not ready
    [   22.874429] wlp1s0: authenticate with <MAC 'MAJOR-TOM' [AC1]>
    [   22.877583] wlp1s0: send auth to <MAC 'MAJOR-TOM' [AC1]> (try 1/3)
    [   22.886646] wlp1s0: authenticated
    [   22.888250] wlp1s0: associate with <MAC 'MAJOR-TOM' [AC1]> (try 1/3)
    [   22.891954] wlp1s0: RX AssocResp from <MAC 'MAJOR-TOM' [AC1]> (capab=0x431 status=0 aid=1)
    [   22.895637] wlp1s0: associated
    [   22.917671] IPv6: ADDRCONF(NETDEV_CHANGE): wlp1s0: link becomes ready
    [   55.007166] wlp1s0: deauthenticating from <MAC 'MAJOR-TOM' [AC1]> by local choice (Reason: 3=DEAUTH_LEAVING)
    
    ########## wireless info END ############

  4. #4
    Join Date
    Sep 2018
    Beans
    9

    Re: WiFi connection instantly disconnects

    any other idea to solve the problem?
    is there an easy way to remove all network settings and reinstall the network-manager to have a new untouched installation
    this might be easier as figure out the details for that problem.....

  5. #5
    Join Date
    Jan 2011
    Location
    Australia
    Beans
    10
    Distro
    Ubuntu Studio 18.10 Cosmic Cuttlefish

    Re: WiFi connection instantly disconnects

    I've seen a lot of wifi dropping out (after a while - usually 20-30 min. of connection) for no reason on both Mint and Ubuntu going back at least to versions 16/17 of both OSs.

    Haven't seen this case when it drops out instantly, though.

    Perhaps some of these things can help (I just had to apply them to my Mint 19.1, so I'm still no 100% sure that it will work.)


  6. #6
    Join Date
    May 2014
    Location
    /home
    Beans
    10,942
    Distro
    Ubuntu 20.04 Focal Fossa

    Re: WiFi connection instantly disconnects

    You could change encryption on your wifi router to WPA2 only, no WEP/TKIP. Then change Network Manager settings for the connection to disable IPv6

  7. #7
    Join Date
    Jan 2011
    Location
    Australia
    Beans
    10
    Distro
    Ubuntu Studio 18.10 Cosmic Cuttlefish

    Re: WiFi connection instantly disconnects

    ^^Just to quickly confirm that this worked for me - got no wi-fi dropping out since these alterations (suggested in those links).
    "You must believe in something. I believe I’ll have another drink".

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