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Thread: Cannot connect to wifi, wifi icon is also not shown in the systray

  1. #1
    Join Date
    May 2021
    Beans
    6

    Exclamation Cannot connect to wifi, wifi icon is also not shown in the systray

    System: Ubuntu 20.04
    I have tried
    Code:
    sudo systemctl restart network-manager
    but it didn't work. This issue is not new, previously when it used to happen, I did run that systemctl command and reboot and everything used to come back to normal.
    I also tried to modprobe r8169 which is my ethernet driver, At this point I am confused that whether my ethernet controller is also responsible for my wifi or not, because I see no other mention of wireless controller or network controller.
    Some of the screenshots that may help to understand my situation.


    Output of different commands are given below

    WhatsApp Image 2021-05-23 at 2.33.25 PM.jpglspci-output.jpglshw-output.jpgrfkill-output.pngnmcli-d-output.png

    Edit: After jeremy's help these are some other things that may let you know more about the config and all https://paste.ubuntu.com/p/M3FpSmpXDY/

    I can also present any other detail as well, if required, please guide me how to overcome this issue.
    Thanks


    Last edited by linux-user-hp77; May 24th, 2021 at 03:07 PM.

  2. #2
    Join Date
    Aug 2011
    Location
    Berlin, Germany
    Beans
    7,929
    Distro
    Ubuntu Mate 20.04 Focal Fossa

    Re: Cannot connect to wifi, wifi icon is also not shown in the systray

    Please show as well
    Code:
    lsusb
    cat /sys/bus/sdio/devices/*
    cat /sys/bus/sdio/devices/*/uevent

  3. #3
    Join Date
    May 2021
    Beans
    6

    Re: Cannot connect to wifi, wifi icon is also not shown in the systray

    Output of lsusb:
    Code:
    Bus 001 Device 007: ID 0bda:0129 Realtek Semiconductor Corp. RTS5129 Card Reader Controller
    Bus 001 Device 006: ID 0a5c:21d7 Broadcom Corp. BCM43142 Bluetooth 4.0
    Bus 001 Device 005: ID 1bcf:2b8b Sunplus Innovation Technology Inc. 
    Bus 001 Device 004: ID 1a2c:4c5e China Resource Semico Co., Ltd 
    Bus 001 Device 003: ID 1bcf:08a0 Sunplus Innovation Technology Inc. 
    Bus 001 Device 002: ID 8087:8000 Intel Corp. 
    Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
    Bus 003 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
    Bus 002 Device 005: ID 22d9:276a MediaTek CPH1723
    Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
    Output of cat /sys/bus/sdio/devices/*
    Code:
    cat: '/sys/bus/sdio/devices/*': No such file or directory
    And same was for cat /sys/bus/sdio/devices/*/uevent

  4. #4
    Join Date
    May 2014
    Location
    /home
    Beans
    9,504
    Distro
    Ubuntu 18.04 Bionic Beaver

    Re: Cannot connect to wifi, wifi icon is also not shown in the systray

    You might need to see if Wifi is disabled in BIOS/ or reset BIOS to defaults and see if the wifi comes back

  5. #5
    Join Date
    May 2021
    Beans
    6

    Re: Cannot connect to wifi, wifi icon is also not shown in the systray

    How to check that?

  6. #6
    Join Date
    Mar 2017
    Beans
    176
    Distro
    Ubuntu 16.04 Xenial Xerus

    Re: Cannot connect to wifi, wifi icon is also not shown in the systray

    I had that happen just this morning.

    Pulled my Edimax wi-fi dongle out of the USB port, plugged it back in and there it was.

    Sometimes I just restart the system, or if I'm really adventurous reboot the router, then restart the computer.

  7. #7
    Join Date
    May 2021
    Beans
    6

    Re: Cannot connect to wifi, wifi icon is also not shown in the systray

    MIne is built in actually, there is nothing that I use externally.

  8. #8
    Join Date
    Apr 2008
    Location
    Southern California, USA
    Beans
    Hidden!
    Distro
    Ubuntu Development Release

    Re: Cannot connect to wifi, wifi icon is also not shown in the systray

    Code:
    systemctl list-unit-files --state=enabled --no-pager
    look for "wpa_supplicant.service". Also check network services

  9. #9
    Join Date
    May 2021
    Beans
    6

    Re: Cannot connect to wifi, wifi icon is also not shown in the systray

    Quote Originally Posted by VMC;1403984od9
    look for "wpa_supplicant.service". Also check network services
    Both are enabled.

  10. #10
    Join Date
    May 2021
    Beans
    6

    Re: Cannot connect to wifi, wifi icon is also not shown in the systray

    Update:
    I have reinstalled my OS, don't know couldn't figure out anything, and wifi icon is back, I think it was some driver issue with broadcom. I should have tried to install some drivers but nvm what's gone is gone

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