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Thread: Wifi adapter not found on Ubuntu 18.04.4 LTS

  1. #1
    Join Date
    May 2020
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    Wifi adapter not found on Ubuntu 18.04.4 LTS

    Hi guys,
    So I installed Ubuntu 18.04.4 LTS (my first time using Ubuntu) on Asus VivoBook Max F541NA, and I can't connect to wifi at all, it says Adapter not found.
    I know it's not an uncommon problem but I tried many solutions from the internet.
    Here the wireless inf log :

    Code:
    ########## wireless info START ##########
    
    Report from: 29 May 2020 01:11 MSK +0300
    
    Booted last: 29 May 2020 00:00 MSK +0300
    
    Script from: 22 Oct 2018 03:34 UTC +0000
    
    ##### release ###########################
    
    Distributor ID:    Ubuntu
    Description:    Ubuntu 18.04.4 LTS
    Release:    18.04
    Codename:    bionic
    
    ##### kernel ############################
    
    Linux 5.3.0-28-generic #30~18.04.1-Ubuntu SMP Fri Jan 17 06:14:09 UTC 2020 x86_64 x86_64 x86_64 GNU/Linux
    
    Parameters: ro, quiet, splash, vt.handoff=1
    
    ##### desktop ###########################
    
    Ubuntu
    
    ##### lspci #############################
    
    ##### lsusb #############################
    
    Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
    Bus 001 Device 005: ID 0bda:0129 Realtek Semiconductor Corp. RTS5129 Card Reader Controller
    Bus 001 Device 004: ID 04f2:b52b Chicony Electronics Co., Ltd 
    Bus 001 Device 003: ID 0bda:b721 Realtek Semiconductor Corp. 
    Bus 001 Device 007: ID 0fce:71e0 Sony Ericsson Mobile Communications AB 
    Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
    
    ##### PCMCIA card info ##################
    
    ##### rfkill ############################
    
    0: asus-bluetooth: Bluetooth
        Soft blocked: no
        Hard blocked: no
    1: hci0: Bluetooth
        Soft blocked: no
        Hard blocked: no
    
    ##### secure boot #######################
    
    SecureBoot disabled
    
    ##### lsmod #############################
    
    asus_nb_wmi            28672  0
    asus_wmi               32768  1 asus_nb_wmi
    sparse_keymap          16384  1 asus_wmi
    wmi_bmof               16384  0
    wmi                    32768  2 asus_wmi,wmi_bmof
    video                  49152  2 asus_wmi,i915
    
    ##### 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: enp0s21f0u2: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc fq_codel state UNKNOWN group default qlen 1000
        link/ether <MAC 'enp0s21f0u2' [IF1]> brd <MAC address>
        inet 192.168.42.140/24 brd 192.168.42.255 scope global dynamic noprefixroute enp0s21f0u2
           valid_lft 4056sec preferred_lft 4056sec
        inet6 fe80::ec72:d3c2:c79d:325e/64 scope link noprefixroute 
           valid_lft forever preferred_lft forever
    
    ##### iwconfig ##########################
    
    lo        no wireless extensions.
    
    enp0s21f0u2  no wireless extensions.
    
    ##### route #############################
    
    default via 192.168.42.129 dev enp0s21f0u2 proto dhcp metric 100 
    169.254.0.0/16 dev enp0s21f0u2 scope link metric 1000 
    192.168.42.0/24 dev enp0s21f0u2 proto kernel scope link src 192.168.42.140 metric 100 
    
    ##### resolv.conf #######################
    
    [777 root '/etc/resolv.conf' -> '../run/systemd/resolve/stub-resolv.conf']
    
    nameserver 127.0.0.53
    options edns0
    
    ##### network managers ##################
    
    Installed:
    
        NetworkManager
    
    Running:
    
    root       736     1  0 00:18 ?        00:00:00 /usr/sbin/NetworkManager --no-daemon
    
    ##### NetworkManager info ###############
    
    GENERAL.DEVICE:                         enp0s21f0u2
    GENERAL.TYPE:                           ethernet
    GENERAL.NM-TYPE:                        NMDeviceEthernet
    GENERAL.VENDOR:                         Sony
    GENERAL.PRODUCT:                        F5122
    GENERAL.DRIVER:                         rndis_host
    GENERAL.DRIVER-VERSION:                 22-Aug-2005
    GENERAL.FIRMWARE-VERSION:               RNDIS device
    GENERAL.HWADDR:                         <MAC 'enp0s21f0u2' [IF1]>
    GENERAL.MTU:                            1500
    GENERAL.STATE:                          100 (connected)
    GENERAL.REASON:                         0 (No reason given)
    GENERAL.UDI:                            /sys/devices/pci0000:00/0000:00:15.0/usb1/1-2/1-2:1.0/net/enp0s21f0u2
    GENERAL.IP-IFACE:                       enp0s21f0u2
    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:                     Проводное соединение 1
    GENERAL.CON-UUID:                       4d78fb02-3f85-3bce-bc15-1badbbbb51ec
    GENERAL.CON-PATH:                       /org/freedesktop/NetworkManager/ActiveConnection/1
    GENERAL.METERED:                        yes (guessed)
    CAPABILITIES.CARRIER-DETECT:            yes
    CAPABILITIES.SPEED:                     unknown
    CAPABILITIES.IS-SOFTWARE:               no
    CAPABILITIES.SRIOV:                     no
    WIRED-PROPERTIES.CARRIER:               on
    IP4.ADDRESS[1]:                         192.168.42.140/24
    IP4.GATEWAY:                            192.168.42.129
    IP4.ROUTE[1]:                           dst = 0.0.0.0/0, nh = 192.168.42.129, mt = 100
    IP4.ROUTE[2]:                           dst = 192.168.42.0/24, nh = 0.0.0.0, mt = 100
    IP4.ROUTE[3]:                           dst = 169.254.0.0/16, nh = 0.0.0.0, mt = 1000
    IP4.DNS[1]:                             192.168.42.129
    DHCP4.OPTION[1]:                        requested_subnet_mask = 1
    DHCP4.OPTION[2]:                        requested_rfc3442_classless_static_routes = 1
    DHCP4.OPTION[3]:                        subnet_mask = 255.255.255.0
    DHCP4.OPTION[4]:                        domain_name_servers = 192.168.42.129
    DHCP4.OPTION[5]:                        ip_address = 192.168.42.140
    DHCP4.OPTION[6]:                        requested_static_routes = 1
    DHCP4.OPTION[7]:                        dhcp_server_identifier = 192.168.42.129
    DHCP4.OPTION[8]:                        requested_time_offset = 1
    DHCP4.OPTION[9]:                        broadcast_address = 192.168.42.255
    DHCP4.OPTION[10]:                       requested_interface_mtu = 1
    DHCP4.OPTION[11]:                       dhcp_rebinding_time = 6300
    DHCP4.OPTION[12]:                       requested_domain_name_servers = 1
    DHCP4.OPTION[13]:                       dhcp_message_type = 5
    DHCP4.OPTION[14]:                       dhcp_renewal_time = 3600
    DHCP4.OPTION[15]:                       routers = 192.168.42.129
    DHCP4.OPTION[16]:                       requested_broadcast_address = 1
    DHCP4.OPTION[17]:                       requested_domain_name = 1
    DHCP4.OPTION[18]:                       requested_routers = 1
    DHCP4.OPTION[19]:                       expiry = 1590707917
    DHCP4.OPTION[20]:                       host_name = elouaer-X541NA
    DHCP4.OPTION[21]:                       requested_netbios_scope = 1
    DHCP4.OPTION[22]:                       requested_wpad = 1
    DHCP4.OPTION[23]:                       requested_ms_classless_static_routes = 1
    DHCP4.OPTION[24]:                       requested_netbios_name_servers = 1
    DHCP4.OPTION[25]:                       network_number = 192.168.42.0
    DHCP4.OPTION[26]:                       requested_domain_search = 1
    DHCP4.OPTION[27]:                       next_server = 192.168.42.129
    DHCP4.OPTION[28]:                       requested_ntp_servers = 1
    DHCP4.OPTION[29]:                       vendor_encapsulated_options = ANDROID_METERED
    DHCP4.OPTION[30]:                       dhcp_lease_time = 7200
    DHCP4.OPTION[31]:                       requested_host_name = 1
    IP6.ADDRESS[1]:                         fe80::ec72:d3c2:c79d:325e/64
    IP6.GATEWAY:                            --
    IP6.ROUTE[1]:                           dst = ff00::/8, nh = ::, mt = 256, table=255
    IP6.ROUTE[2]:                           dst = fe80::/64, nh = ::, mt = 256
    IP6.ROUTE[3]:                           dst = fe80::/64, nh = ::, mt = 100
    CONNECTIONS.AVAILABLE-CONNECTION-PATHS: /org/freedesktop/NetworkManager/Settings/{1}
    CONNECTIONS.AVAILABLE-CONNECTIONS[1]:   4d78fb02-3f85-3bce-bc15-1badbbbb51ec | Проводное соединение 1
    
    ##### 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
    [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:wwan
    
    [[/usr/lib/NetworkManager/conf.d/20-connectivity-ubuntu.conf]]
    [connectivity]
    uri=http://connectivity-check.ubuntu.com/
    
    [[/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/Moscow (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 ###################
    
    lo        no frequency information.
    
    enp0s21f0u2  no frequency information.
    
    ##### iwlist scan #######################
    
    lo        Interface doesn't support scanning.
    
    enp0s21f0u2  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-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 i2c_i801
    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 #############################
    
    [   15.640697] rndis_host 1-2:1.0 enp0s21f0u2: renamed from usb0
    [   15.656226] Bluetooth: hci0: RTL: rtl: examining hci_ver=06 hci_rev=000b lmp_ver=06 lmp_subver=8723
    [   15.657188] Bluetooth: hci0: RTL: rtl: loading rtl_bt/rtl8723b_fw.bin
    [   15.735705] Bluetooth: hci0: RTL: rtl: loading rtl_bt/rtl8723b_config.bin
    [   15.735752] bluetooth hci0: Direct firmware load for rtl_bt/rtl8723b_config.bin failed with error -2
    
    ########## wireless info END ############

    I think the wifi device is : Integrated Wi-Fi 4 (802.11 b/g/n)

    Thanks,
    Last edited by jeremy31; May 29th, 2020 at 10:57 PM. Reason: code tags

  2. #2
    Join Date
    Aug 2005
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    South Carolina, USA
    Beans
    25,285
    Distro
    Ubuntu 20.04 Focal Fossa

    Re: Wifi adapter not found on Ubuntu 18.04.4 LTS

    We see no wireless device at all. Is it enabled or disabled in the BIOS/EFI?
    "Oh, Ubuntu, you are my favorite Linux-based operating system" --Dr. Sheldon Cooper, Ph.D., Sc.D.

  3. #3
    Join Date
    May 2020
    Beans
    5

    Re: Wifi adapter not found on Ubuntu 18.04.4 LTS

    I checked twice, it's enabled, the wifi worked under Win10 before it crashed

  4. #4
    Join Date
    May 2020
    Beans
    5

    Re: Wifi adapter not found on Ubuntu 18.04.4 LTS

    I checked my wifi adapter, it normally connected, i plugged then unplugged it, it's wcbn611lh-ad(1a)


    [IMG][/IMG]
    Last edited by rach88; May 29th, 2020 at 01:23 PM.

  5. #5
    Join Date
    Aug 2005
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    25,285
    Distro
    Ubuntu 20.04 Focal Fossa

    Re: Wifi adapter not found on Ubuntu 18.04.4 LTS

    Does it now appear here?

    Code:
    lspci -nnk
    "Oh, Ubuntu, you are my favorite Linux-based operating system" --Dr. Sheldon Cooper, Ph.D., Sc.D.

  6. #6
    Join Date
    May 2020
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    5

    Re: Wifi adapter not found on Ubuntu 18.04.4 LTS

    elouaer@elouaer-X541NA:~$ lspci -nnk
    00:00.0 Host bridge [0600]: Intel Corporation Celeron N3350/Pentium N4200/Atom E3900 Series Host Bridge [8086:5af0] (rev 0b)
    Subsystem: ASUSTeK Computer Inc. Celeron N3350/Pentium N4200/Atom E3900 Series Host Bridge [1043:16a0]
    00:00.1 Signal processing controller [1180]: Intel Corporation Device [8086:5a8c] (rev 0b)
    Subsystem: ASUSTeK Computer Inc. Device [1043:16a0]
    Kernel driver in use: proc_thermal
    Kernel modules: processor_thermal_device
    00:02.0 VGA compatible controller [0300]: Intel Corporation Device [8086:5a85] (rev 0b)
    Subsystem: ASUSTeK Computer Inc. Device [1043:16a0]
    Kernel driver in use: i915
    Kernel modules: i915
    00:0e.0 Audio device [0403]: Intel Corporation Celeron N3350/Pentium N4200/Atom E3900 Series Audio Cluster [8086:5a98] (rev 0b)
    Subsystem: ASUSTeK Computer Inc. Celeron N3350/Pentium N4200/Atom E3900 Series Audio Cluster [1043:12e0]
    Kernel driver in use: snd_hda_intel
    Kernel modules: snd_hda_intel, sof_pci_dev
    00:0f.0 Communication controller [0780]: Intel Corporation Celeron N3350/Pentium N4200/Atom E3900 Series Trusted Execution Engine [8086:5a9a] (rev 0b)
    Subsystem: ASUSTeK Computer Inc. Celeron N3350/Pentium N4200/Atom E3900 Series Trusted Execution Engine [1043:16a0]
    Kernel driver in use: mei_me
    Kernel modules: mei_me
    00:12.0 SATA controller [0106]: Intel Corporation Celeron N3350/Pentium N4200/Atom E3900 Series SATA AHCI Controller [8086:5ae3] (rev 0b)
    Subsystem: ASUSTeK Computer Inc. Celeron N3350/Pentium N4200/Atom E3900 Series SATA AHCI Controller [1043:16a0]
    Kernel driver in use: ahci
    Kernel modules: ahci
    00:15.0 USB controller [0c03]: Intel Corporation Celeron N3350/Pentium N4200/Atom E3900 Series USB xHCI [8086:5aa8] (rev 0b)
    Subsystem: ASUSTeK Computer Inc. Celeron N3350/Pentium N4200/Atom E3900 Series USB xHCI [1043:16a0]
    Kernel driver in use: xhci_hcd
    00:16.0 Signal processing controller [1180]: Intel Corporation Celeron N3350/Pentium N4200/Atom E3900 Series I2C Controller #1 [8086:5aac] (rev 0b)
    Subsystem: ASUSTeK Computer Inc. Celeron N3350/Pentium N4200/Atom E3900 Series I2C Controller [1043:16a0]
    Kernel driver in use: intel-lpss
    Kernel modules: intel_lpss_pci
    00:17.0 Signal processing controller [1180]: Intel Corporation Celeron N3350/Pentium N4200/Atom E3900 Series I2C Controller #5 [8086:5ab4] (rev 0b)
    Subsystem: ASUSTeK Computer Inc. Celeron N3350/Pentium N4200/Atom E3900 Series I2C Controller [1043:16a0]
    Kernel driver in use: intel-lpss
    Kernel modules: intel_lpss_pci
    00:1f.0 ISA bridge [0601]: Intel Corporation Celeron N3350/Pentium N4200/Atom E3900 Series Low Pin Count Interface [8086:5ae8] (rev 0b)
    Subsystem: ASUSTeK Computer Inc. Celeron N3350/Pentium N4200/Atom E3900 Series Low Pin Count Interface [1043:16a0]
    Kernel driver in use: lpc_ich
    Kernel modules: lpc_ich
    00:1f.1 SMBus [0c05]: Intel Corporation Celeron N3350/Pentium N4200/Atom E3900 Series SMBus Controller [8086:5ad4] (rev 0b)
    Subsystem: ASUSTeK Computer Inc. Celeron N3350/Pentium N4200/Atom E3900 Series SMBus Controller [1043:16a0]
    Kernel modules: i2c_i801
    I think it doesn't, please double check

  7. #7
    Join Date
    May 2014
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    /home
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    8,786
    Distro
    Ubuntu 18.04 Bionic Beaver

    Re: Wifi adapter not found on Ubuntu 18.04.4 LTS

    Is it enabled in BIOS? Try a BIOS reset to defaults and see if it works

  8. #8
    Join Date
    Aug 2005
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    South Carolina, USA
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    Distro
    Ubuntu 20.04 Focal Fossa

    Re: Wifi adapter not found on Ubuntu 18.04.4 LTS

    We still see no wireless device. If it is for sure enabled in the BIOS/EFI then we must suspect that either the device or the PCI bus is defective.
    "Oh, Ubuntu, you are my favorite Linux-based operating system" --Dr. Sheldon Cooper, Ph.D., Sc.D.

  9. #9
    Join Date
    Aug 2011
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    Berlin, Germany
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    7,832
    Distro
    Ubuntu Mate 16.04 Xenial Xerus

    Re: Wifi adapter not found on Ubuntu 18.04.4 LTS

    Please show

    Code:
    cat /sys/bus/sdio/devices/*
    cat /sys/bus/sdio/devices/*/uevent

  10. #10
    Join Date
    May 2020
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    5

    Re: Wifi adapter not found on Ubuntu 18.04.4 LTS

    elouaer@elouaer-X541NA:~$ cat /sys/bus/sdio/devices/*
    cat: '/sys/bus/sdio/devices/*': Нет такого файла или каталога
    elouaer@elouaer-X541NA:~$ cat /sys/bus/sdio/devices/*/uevent
    cat: '/sys/bus/sdio/devices/*/uevent': Нет такого файла или каталога
    It says: no such file or catalogue in Russian

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