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Thread: New install of Lubuntu 20.04 LTS can't connect to Internet

  1. #1
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    New install of Lubuntu 20.04 LTS can't connect to Internet

    I installed Lubuntu 20.04 LTS over 18.04 LTS. No internet connection is working. It seems neither my ethernet nor my wi-fi is recognised. "Wired connection 1" in network manager icon is disconnected. If I click on it nothing happens. "Wi-fi networks" is greyed out. Right click shows "Enable Wi-fi" is checked. Click on "Wi-fi request scan" does nothing at all. Please let me know what information to post so you can help me. Many thanks.

  2. #2
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    Re: New install of Lubuntu 20.04 LTS can't connect to Internet

    Administrators please move this to "Networking and Wireless". Thank you.

  3. #3
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    Re: New install of Lubuntu 20.04 LTS can't connect to Internet

    Moved.
    Correct way to request change is to use the report post at bottom. That is not just for spam but anything you need an Admin for.

    If you can run the wireless script shown in stick threads at top of Wireless sub-forum can copy to a system that can connect, post the results of that script.

    What wired & wireless chips do you have? Some wireless chips need you to download a driver. But usually wired connections work.
    For more info on UEFI boot install & repair - Regularly Updated :
    http://ubuntuforums.org/showthread.php?t=2147295
    Please use Thread Tools above first post to change to [Solved] when/if answered completely.

  4. #4
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    Re: New install of Lubuntu 20.04 LTS can't connect to Internet

    Quote Originally Posted by oldfred View Post

    If you can run the wireless script shown in stick threads at top of Wireless sub-forum can copy to a system that can connect, post the results of that script.

    What wired & wireless chips do you have? Some wireless chips need you to download a driver. But usually wired connections work.
    Thank you for your reply. Do you mean this script?

    Code:
    wget -N -t 5 -T 10 https://github.com/UbuntuForums/wireless-info/raw/master/wireless-info && \
    chmod +x wireless-info && \
    ./wireless-info
    Surely that requires a connection, which I don't have.

    How can I find out which wired and wireless chips I have?

    Thank you again.

  5. #5
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    Re: New install of Lubuntu 20.04 LTS can't connect to Internet

    Please run the script as per the instructions. It doesn't require any internet connection to run and it's intended to troubleshoot any connection. Most users running it have no connection. You may need to download it from somewhere else though.
    It'll create a report file and that file - its contents actually - is what you should post here. Of course, you may need to copy it from that computer to the one you're using to post in the forum.

  6. #6
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    Re: New install of Lubuntu 20.04 LTS can't connect to Internet

    Here is the output of the wireless-info script:


    Code:
    ########## wireless info START ##########
    
    Report from: 04 May 2020 08:39 CEST +0200
    
    Booted last: 04 May 2020 00:00 CEST +0200
    
    Script from: 22 Oct 2018 03:34 UTC +0000
    
    ##### release ###########################
    
    Distributor ID:    Ubuntu
    Description:    Ubuntu 20.04 LTS
    Release:    20.04
    Codename:    focal
    
    ##### kernel ############################
    
    Linux 5.4.0-26-generic #30-Ubuntu SMP Mon Apr 20 16:58:30 UTC 2020 x86_64 x86_64 x86_64 GNU/Linux
    
    Parameters: ro, quiet, splash, vt.handoff=7
    
    ##### desktop ###########################
    
    Lubuntu
    
    ##### lspci #############################
    
    02:00.0 Network controller [0280]: Broadcom Inc. and subsidiaries BCM43142 802.11b/g/n [14e4:4365] (rev 01)
        Subsystem: Lenovo BCM43142 802.11b/g/n [17aa:0611]
    
    03:00.0  Ethernet controller [0200]: Realtek Semiconductor Co., Ltd.  RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller [10ec:8168]  (rev 07)
        Subsystem: Lenovo RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller [17aa:5002]
        Kernel driver in use: r8169
    
    ##### lsusb #############################
    
    Bus 002 Device 002: ID 8087:0024 Intel Corp. Integrated Rate Matching Hub
    Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
    Bus 001 Device 005: ID 105b:e065 Foxconn International, Inc. BCM43142A0 Bluetooth module
    Bus 001 Device 004: ID 058f:6366 Alcor Micro Corp. Multi Flash Reader
    Bus 001 Device 006: ID 13fe:3623 Kingston Technology Company Inc. 
    Bus 001 Device 003: ID 04f2:b2fa Chicony Electronics Co., Ltd 
    Bus 001 Device 002: ID 8087:0024 Intel Corp. Integrated Rate Matching Hub
    Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
    Bus 004 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
    Bus 003 Device 002: ID 046d:c52f Logitech, Inc. Unifying Receiver
    Bus 003 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
    
    ##### PCMCIA card info ##################
    
    ##### rfkill ############################
    
    0: tpacpi_bluetooth_sw: Bluetooth
        Soft blocked: no
        Hard blocked: no
    1: hci0: Bluetooth
        Soft blocked: no
        Hard blocked: no
    
    ##### secure boot #######################
    
    SecureBoot disabled
    
    ##### lsmod #############################
    
    wmi_bmof               16384  0
    wmi                    32768  1 wmi_bmof
    
    ##### interfaces ########################
    
    ##### 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: enp3s0: <NO-CARRIER,BROADCAST,MULTICAST,UP> mtu 1500 qdisc fq_codel state DOWN group default qlen 1000
        link/ether <MAC 'enp3s0' [IF1]> brd <MAC address>
    
    ##### iwconfig ##########################
    
    enp3s0    no wireless extensions.
    
    lo        no wireless extensions.
    
    ##### route #############################
    
    ##### resolv.conf #######################
    
    [644 root '/etc/resolv.conf']
    
    nameserver 127.0.0.53
    options edns0
    
    ##### network managers ##################
    
    Installed:
    
        NetworkManager
    
    Running:
    
    root         756       1  0 08:31 ?        00:00:00 /usr/sbin/NetworkManager --no-daemon
    
    ##### NetworkManager info ###############
    
    GENERAL.DEVICE:                         enp3s0
    GENERAL.TYPE:                           ethernet
    GENERAL.NM-TYPE:                        NMDeviceEthernet
    GENERAL.DBUS-PATH:                      /org/freedesktop/NetworkManager/Devices/2
    GENERAL.VENDOR:                         Realtek Semiconductor Co., Ltd.
    GENERAL.PRODUCT:                        RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller
    GENERAL.DRIVER:                         r8169
    GENERAL.DRIVER-VERSION:                 --
    GENERAL.FIRMWARE-VERSION:               --
    GENERAL.HWADDR:                         <MAC 'enp3s0' [IF1]>
    GENERAL.MTU:                            1500
    GENERAL.STATE:                          20 (unavailable)
    GENERAL.REASON:                         40 (Carrier/link changed)
    GENERAL.IP4-CONNECTIVITY:               1 (none)
    GENERAL.IP6-CONNECTIVITY:               1 (none)
    GENERAL.UDI:                            /sys/devices/pci0000:00/0000:00:1c.3/0000:03:00.0/net/enp3s0
    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:                     10 Mb/s
    CAPABILITIES.IS-SOFTWARE:               no
    CAPABILITIES.SRIOV:                     no
    INTERFACE-FLAGS.UP:                     yes
    INTERFACE-FLAGS.LOWER-UP:               no
    INTERFACE-FLAGS.CARRIER:                no
    WIRED-PROPERTIES.CARRIER:               off
    CONNECTIONS.AVAILABLE-CONNECTION-PATHS: --
    
    ##### NetworkManager.state ##############
    
    cat: /var/lib/NetworkManager/NetworkManager.state: Permission denied
    
    ##### NetworkManager config #############
    
    [[/etc/NetworkManager/conf.d/default-wifi-powersave-on.conf]]
    [connection]
    wifi.powersave = 3
    
    [[/etc/NetworkManager/NetworkManager.conf]]
    [main]
    plugins=ifupdown,keyfile
    [ifupdown]
    managed=false
    [device]
    wifi.scan-rand-mac-address=no
    
    [[/usr/lib/NetworkManager/conf.d/10-dns-resolved.conf]]
    [main]
    dns=systemd-resolved
    
    [[/usr/lib/NetworkManager/conf.d/10-globally-managed-devices.conf]]
    [keyfile]
    unmanaged-devices=*,except:type:wifi,except:type:gsm,except:type:cdma
    
    [[/usr/lib/NetworkManager/conf.d/no-mac-addr-change.conf]]
    [device-mac-addr-change-wifi]
    match-device=driver:rtl8723bs,driver:rtl8189es,driver:r8188eu,driver:8188eu,driver:eagle_sdio,driver:wl
    wifi.scan-rand-mac-address=no
    wifi.cloned-mac-address=preserve
    ethernet.cloned-mac-address=preserve
    
    ##### NetworkManager profiles ###########
    
    ##### Netplan config ####################
    
    [/etc/netplan/01-network-manager-all.yaml]
    network:
      version: 2
      renderer: NetworkManager
    
    ##### iw reg get ########################
    
    Region: Europe/Madrid (based on set time zone)
    
    global
    country 00: DFS-UNSET
        (2402 - 2472 @ 40), (6, 20), (N/A)
        (2457 - 2482 @ 20), (6, 20), (N/A), AUTO-BW, PASSIVE-SCAN
        (2474 - 2494 @ 20), (6, 20), (N/A), NO-OFDM, PASSIVE-SCAN
        (5170 - 5250 @ 80), (6, 20), (N/A), AUTO-BW, PASSIVE-SCAN
        (5250 - 5330 @ 80), (6, 20), (0 ms), DFS, AUTO-BW, 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 ###################
    
    enp3s0    no frequency information.
    
    lo        no frequency information.
    
    ##### iwlist scan #######################
    
    enp3s0    Interface doesn't support scanning.
    
    lo        Interface doesn't support scanning.
    
    ##### module infos ######################
    
    ##### module parameters #################
    
    ##### /etc/modules ######################
    
    ##### modprobe options ##################
    
    [/etc/modprobe.d/amd64-microcode-blacklist.conf]
    blacklist microcode
    
    [/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
    
    ##### rc.local ##########################
    
    grep: /etc/rc.local: No such file or directory
    
    ##### pm-utils ##########################
    
    ##### udev rules ########################
    
    ##### dmesg #############################
    
    [   13.368111] bluetooth hci0: Direct firmware load for brcm/BCM43142A0-105b-e065.hcd failed with error -2
    [   13.368115] Bluetooth: hci0: BCM: Patch brcm/BCM43142A0-105b-e065.hcd not found
    [   28.765787] r8169 0000:03:00.0 enp3s0: Link is Down
    [   88.443970] r8169 0000:03:00.0 enp3s0: Link is Up - 10Mbps/Half - flow control off
    [   88.443983] IPv6: ADDRCONF(NETDEV_CHANGE): enp3s0: link becomes ready
    [   89.963429] r8169 0000:03:00.0 enp3s0: Link is Down
    [  101.362310] r8169 0000:03:00.0 enp3s0: Link is Up - 10Mbps/Half - flow control off
    [  101.748830] r8169 0000:03:00.0 enp3s0: Link is Down
    [  111.174321] r8169 0000:03:00.0 enp3s0: Link is Up - 10Mbps/Half - flow control off
    [  111.378703] r8169 0000:03:00.0 enp3s0: Link is Down
    [  156.557614] r8169 0000:03:00.0 enp3s0: Link is Up - 10Mbps/Half - flow control off
    [  157.011324] r8169 0000:03:00.0 enp3s0: Link is Down
    [  165.700444] r8169 0000:03:00.0 enp3s0: Link is Up - 10Mbps/Half - flow control off
    [  165.867797] r8169 0000:03:00.0 enp3s0: Link is Down
    
    ########## wireless info END ############

  7. #7
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    Re: New install of Lubuntu 20.04 LTS can't connect to Internet


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