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I've a Lenovo flex 6-14, dualboot Windows and Ubuntu 23.04. After a month of no problems, suddenly wifi problems started. The wifi stops working after i open e.g a youtube video. Then the wifi button dissapears. The way i fix it is to restart.

To make sure it's not a hardware issue, i used Windows for a week, without any wifi problems.

The output of lspci -knn | grep Net -A2 is:

02:00.0 Network controller [0280]: Realtek Semiconductor Co., Ltd. RTL8822BE 802.11a/b/g/n/ac WiFi adapter [10ec:b822]
    Subsystem: Lenovo ThinkPad E595 [17aa:b023]
    Kernel driver in use: rtw_8822be

I installed rtl8812au-dkms as suggested here, but rtw_8822be is still in use. Not sure if i should mess with this in the first place.

Any ideas?

Leon Vitanos
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  • That was a different issue, rtl8812au-dkms will not work with 8822be, run this in terminal and reboot sudo sed -i 's/wifi.powersave = 3/wifi.powersave = 2/' /etc/NetworkManager/conf.d/default-wifi-powersave-on.conf – Jeremy31 Nov 08 '23 at 12:34
  • Look at the network logs with the terminal command: sudo journalctl -b 0 -u NetworkManager. Read man journalctl NetworkManager service. Also do: service NetworkManager status and service --status-all. – waltinator Nov 08 '23 at 13:27

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