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Thread: wifi Atheros AR9287 drops connection, ubuntu 18.04

  1. #1
    Join Date
    Jul 2019
    Beans
    2

    wifi Atheros AR9287 drops connection, ubuntu 18.04

    hi,
    I install ubuntu 18.04 in my old acer laptop, but the wifi doesn't work all , It's shows the wifi is hard blocks.
    I have try everything I find in net, but didn't solve it.

    Code:
    03:00.0 Network controller [0280]: Qualcomm Atheros AR9287 Wireless Network Adapter (PCI-Express) [168c:002e] (rev 01)
        Subsystem: Foxconn International, Inc. T77H167.00 [105b:e034]
        Kernel driver in use: ath9k
    rfkill list
    Code:
    0: phy0: Wireless LAN
        Soft blocked: no
        Hard blocked: yes
    1: acer-wireless: Wireless LAN
        Soft blocked: no
        Hard blocked: no
    lsmod | egrep 'wmi | ath9k'
    Code:
    wmi_bmof               16384  0
    acer_wmi               20480  0
    sparse_keymap          16384  1 acer_wmi
    ath9k                 151552  0
    ath9k_common           36864  1 ath9k
    ath9k_hw              475136  2 ath9k_common,ath9k
    ath                    32768  3 ath9k_common,ath9k,ath9k_hw
    mac80211              802816  1 ath9k
    cfg80211              667648  4 ath9k_common,ath9k,ath,mac80211
    video                  45056  2 acer_wmi,i915
    wmi                    24576  2 acer_wmi,wmi_bmof

  2. #2
    Join Date
    Aug 2011
    Location
    Berlin, Germany
    Beans
    7,701
    Distro
    Ubuntu Mate 16.04 Xenial Xerus

    Re: wifi Atheros AR9287 drops connection, ubuntu 18.04

    Try resetting your BIOS to default settings

  3. #3
    Join Date
    Jul 2019
    Beans
    2

    Re: wifi Atheros AR9287 drops connection, ubuntu 18.04

    FIrst I only add blacklist acer_wmi in /etc/modprobe.d/blacklist.conf, but it didn't work.
    Then I follow the above. reset the BIOS. and add blacklist acer_wmi in /etc/modprobe.d/blacklist.conf and the wifi work.
    I don'st remember when I reset the BIOS, what have changed, but it work.
    thanks.

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