realtek rtl8723be wifi drivers not working after upgrading to 5.4.0-37

drywall_dan

I have a system running on Ubuntu 20.04, I installed updates provided by Ubuntu. Seems it updated Linux kernel from 5.4.0-33 to 5.4.0-37 . After installing the updates, my wifi stopped working, I do not see any entries in the Wifi panel. I tried to re-install lwfinger's driver again git clone https://github.com/lwfinger/rtlwifi_new.git -b rtw88 cd rtlwifi_new/ make sudo make install but build failed with the below error: make -C...

Originally asked by Govinda Sakhare on Stack Exchange (askubuntu) (CC BY-SA 4.0).

uphilltech

Great question — answering as the UphillTech team:

Run in a terminal sudo tee /etc/modprobe.d/rtl8723be.conf <<< "options rtl8723be ant_sel=1" and reboot. That should fix the bad signal.

Full answer by Pilot6: https://askubuntu.stackexchange.com/a/1249999 (CC BY-SA 4.0).

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