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Thread: Atheros QCA9377 (rev 31) doesn't detect certain WiFi networks on Ubuntu 19.10

  1. #1
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    Atheros QCA9377 (rev 31) doesn't detect certain WiFi networks on Ubuntu 19.10

    Running Ubuntu 19.10 on an Acer A315-41-R45R and sometimes particular WiFi networks don't show up at all. The hotspot I create on one of my Android phone doesn't show up as a network sometimes and sometimes it does. Is there any fix for this?


    So, it seems that if I change the name of the Android hotspot it shows up and I can connect to it. Any reason for this?


    Also attaching the result of the wireless-info script: https://pastebin.com/kAHV536Q

  2. #2
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    Re: Atheros QCA9377 (rev 31) doesn't detect certain WiFi networks on Ubuntu 19.10

    Which country do you live?

  3. #3
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    Re: Atheros QCA9377 (rev 31) doesn't detect certain WiFi networks on Ubuntu 19.10

    India. Why?

  4. #4
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    Re: Atheros QCA9377 (rev 31) doesn't detect certain WiFi networks on Ubuntu 19.10

    Setting the country code

    Code:
    sudo sed -i "s/REGDOMAIN=/REGDOMAIN=IN/g" /etc/default/crda
    Reboot and check
    Code:
    iwlist chan

  5. #5
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    Re: Atheros QCA9377 (rev 31) doesn't detect certain WiFi networks on Ubuntu 19.10

    Did that. These are the results of
    Code:
    iwlist chan
    Code:
    enp1s0f1  no frequency information.
    
    lo        no frequency information.
    
    wlp2s0    26 channels in total; available frequencies :
              Channel 01 : 2.412 GHz
              Channel 02 : 2.417 GHz
              Channel 03 : 2.422 GHz
              Channel 04 : 2.427 GHz
              Channel 05 : 2.432 GHz
              Channel 06 : 2.437 GHz
              Channel 07 : 2.442 GHz
              Channel 08 : 2.447 GHz
              Channel 09 : 2.452 GHz
              Channel 10 : 2.457 GHz
              Channel 11 : 2.462 GHz
              Channel 12 : 2.467 GHz
              Channel 36 : 5.18 GHz
              Channel 40 : 5.2 GHz
              Channel 44 : 5.22 GHz
              Channel 48 : 5.24 GHz
              Channel 52 : 5.26 GHz
              Channel 56 : 5.28 GHz
              Channel 60 : 5.3 GHz
              Channel 64 : 5.32 GHz
              Channel 149 : 5.745 GHz
              Channel 153 : 5.765 GHz
              Channel 157 : 5.785 GHz
              Channel 161 : 5.805 GHz
              Channel 165 : 5.825 GHz
              Channel 169 : 5.845 GHz
              Current Frequency:5.745 GHz (Channel 149)

  6. #6
    Join Date
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    Re: Atheros QCA9377 (rev 31) doesn't detect certain WiFi networks on Ubuntu 19.10

    Obviously, a problem with the EPROM, only 12 channels visible in the 2,4 GHz region. Do the other network broadcast on channel 11 or other not shown in your output?

  7. #7
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    Re: Atheros QCA9377 (rev 31) doesn't detect certain WiFi networks on Ubuntu 19.10

    Same here, I'm in the Netherlands, with 32 channels available but not channel 13, where the desired network is broadcasting. In Windows its working fine.

  8. #8
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    Re: Atheros QCA9377 (rev 31) doesn't detect certain WiFi networks on Ubuntu 19.10

    Hello Mujaheiden, if you need support for an issue please start your own thread instead of posting in someone else's so you and the OP of this thread can both get the individual help you need,

    Thanks

  9. #9
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    Re: Atheros QCA9377 (rev 31) doesn't detect certain WiFi networks on Ubuntu 19.10

    Please try

    Code:
    echo 'options cfg80211 ieee80211_regdom="IN"'| sudo tee /etc/modprobe.d/cfg80211_options.conf
    and reboot.

    @Mujaheiden. Try it with "NL" or "EU" instead of "IN"

  10. #10
    Join Date
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    Re: Atheros QCA9377 (rev 31) doesn't detect certain WiFi networks on Ubuntu 19.10

    No avail, but thanks. Missing chanel 13 seems to me to point here.

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