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Thread: RT5390R 802.11bgn unstable wifi, Ubuntu 20.04

  1. #1
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    RT5390R 802.11bgn unstable wifi, Ubuntu 20.04

    Hi,

    I have just upgraded to 20.04 from 18.04, and I have a wifi problem: wifi starts ok after boot, but it is unstable, and I will eventually get the following message:
    "Activation of Network Connection Failed"

    I have found from an other thread a script to help the diagnostic: https://ubuntuforums.org/showthread.php?t=370108 (accessed from Jeremy21 signature)

    Here are the results of running the script on my setup:

  2. #2
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    Re: RT5390R 802.11bgn unstable wifi, Ubuntu 20.04

    Please post the results from the script. If you have issues do in terminal
    Code:
    cat wireless-info.txt | nc termbin.com 9999
    Post termbin.com URL from terminal

  3. #3
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    Re: RT5390R 802.11bgn unstable wifi, Ubuntu 20.04

    yes, sorry, wifi issue, the attachment did not go through
    wireless-info.tar.gz

  4. #4
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    Re: RT5390R 802.11bgn unstable wifi, Ubuntu 20.04

    See if it works better after
    Code:
    sudo sed -i 's/wifi.powersave = 3/wifi.powersave = 2/' /etc/NetworkManager/conf.d/default-wifi-powersave-on.conf
    systemctl restart network-manager.service
    It might also help if you access the router settings for encryption and just use WPA2 AES/CCMP without TKIP

  5. #5
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    Re: RT5390R 802.11bgn unstable wifi, Ubuntu 20.04

    thanks.

    I have executed the command. Wifi seems to run just now. i'll let you know in 5min if it is stable

    I don't really understand what you're suggesting in the second item.

  6. #6
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    Re: RT5390R 802.11bgn unstable wifi, Ubuntu 20.04

    That involves logging into the wifi router and changing the wifi encryption settings

  7. #7
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    Re: RT5390R 802.11bgn unstable wifi, Ubuntu 20.04

    HI, well, Activation of network connection failed again.

    Do I risk to upset all the other devices on the network if I change the encryption setting of the router?

  8. #8
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    Re: RT5390R 802.11bgn unstable wifi, Ubuntu 20.04

    I doubt the other devices will even notice the change
    Also see https://ubuntuforums.org/showthread....&#post13614520

  9. #9
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    Re: RT5390R 802.11bgn unstable wifi, Ubuntu 20.04

    ok, enough for tonight on my side. I have changed the router to WPA2 only, and I have check that my countre code is fixed at GB.
    I'll reboot the router tomorrow and check if it is better.

    Thanks for looking at this problem

    Hi, sorry, but I can't really report on dramatic improvement. it is erratoc, so it's difficult to properly assess, but it is still no stable for any serious use.

    should I run the diagnostic tool again?
    Last edited by howefield; May 4th, 2020 at 12:01 PM. Reason: posts merged.

  10. #10
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    Re: RT5390R 802.11bgn unstable wifi, Ubuntu 20.04

    yes, please do

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