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Thread: Wifi Not working: Lenovo z40 / Broadcom BCM43142 802.11b/g/n

  1. #1
    Join Date
    Jan 2021
    Beans
    1

    Exclamation Wifi Not working: Lenovo z40 / Broadcom BCM43142 802.11b/g/n

    I im using Ubuntu "20.04.1 LTS (Focal Fossa)" in my Lenovo z40 and my wifi is not working. I am copying below the hardware I am using and the output of the command iwconfig. I am a new user so please forgive me if i am not giving enough information.

    Thanks in advance.

    -----------------------------------
    $ lspci -k

    01:00.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller (rev 10)
    Subsystem: Lenovo RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller
    Kernel driver in use: r8169
    Kernel modules: r8169
    02:00.0 Network controller: Broadcom Inc. and subsidiaries BCM43142 802.11b/g/n (rev 01)
    Subsystem: Lenovo BCM43142 802.11b/g/n

    03:00.0 3D controller: NVIDIA Corporation GF117M [GeForce 610M/710M/810M/820M / GT 620M/625M/630M/720M] (rev a1)
    Subsystem: Lenovo GeForce 820M
    Kernel driver in use: nouveau
    Kernel modules: nvidiafb, nouveau

    -----------------------------------

    -----------------------------------

    $ iwconfig
    lo no wireless extensions.

    enp1s0 no wireless extensions.
    -----------------------------------

  2. #2
    Join Date
    May 2014
    Location
    /home
    Beans
    9,189
    Distro
    Ubuntu 18.04 Bionic Beaver

    Re: Wifi Not working: Lenovo z40 / Broadcom BCM43142 802.11b/g/n

    Please post result from terminal for
    Code:
    uname -a

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