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Thread: Wireless Network Adapter not ON

  1. #11
    tea for one is offline Grande Half-n-Half Cinnamon Ubuntu
    Join Date
    May 2008
    Beans
    895
    Distro
    Ubuntu 20.04 Focal Fossa

    Re: Wireless Network Adapter not ON

    From your post no. 6

    04:00.0 Network controller [0280]: Broadcom Inc. and subsidiaries BCM43142 802.11b/g/n [14e4:4365] (rev 01)
    Subsystem: Dell Wireless 1704 802.11n + BT 4.0 [1028:0016]
    Kernel driver in use: bcma-pci-bridge
    Kernel modules: bcma
    0: hci0: Bluetooth
    Soft blocked: no
    Hard blocked: no
    From the advice in this thread https://ubuntuforums.org/showthread.php?t=2214110

    14e4:4365 Special case #2 bcmwl-kernel-source
    You need to use a different driver but it is difficult to understand exactly what you have done so far, especially when you mention Cosmic Cuttlefish in post no. 7.

    In your position, I would back up my data, reinstall cleanly 20.04 and then add the correct driver as follows:-

    Code:
    sudo apt install bcmwl-kernel-source
    Alternatively, ask the mods to move the thread to Networking & Wireless, where more knowledgeable users can help you remove and replace your wireless drivers.

  2. #12
    Join Date
    Jun 2010
    Beans
    55

    Re: Wireless Network Adapter not ON

    Sorry,

    I did not want to burden with details, but I started with 18.10 installation, because a link on Ubuntu website let me to it as being the latest version (dont ask me how, I tried to retrace my steps already).

    Subsequently I did install the 20.04.1, but the exact same problem persists.

    Best

  3. #13
    Join Date
    May 2013
    Location
    Galiza
    Beans
    2,588
    Distro
    Ubuntu

    Re: Wireless Network Adapter not ON

    A good clean, from scratch, installation of Ubuntu 20.04 it's a good starting point. It's supported for 5 years.
    That you had an older release before is confusing for the people trying to help you and irrelevant if you now installed Ubuntu 20.04 from scratch.

    The solution is the same though.
    Get an alternative internet connection (Ethernet cable, USB tethering from your Android or iPhone, etc.) and run in terminal:
    Code:
    sudo apt install bcmwl-kernel-source
    This is a one time only.

  4. #14
    Join Date
    Jun 2006
    Location
    UK
    Beans
    Hidden!
    Distro
    Ubuntu 20.04 Focal Fossa

    Re: Wireless Network Adapter not ON

    Threads merged and merged thread moved to Networking & Wireless sub-forum.
    Ubuntu 18.04 Desktop Guide - Ubuntu 20.04 Desktop Guide - Forum Guide to BBCode - Using BBCode code tags - IRC #ubuntuforums

    Member: Not Canonical Team

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