I should also mention that I can see the device from the app, but it's not marked as serving as a WIFI AP, and "resetting" it does nothing, as far as I can tell.

@woozle Thanks a lot for clarifying that for me. Are you aware of any method existing to re-upload the AP's firmware without being able to access its web-interface? Thanks!

I've just tried plctool -i eno1 -P /TL-PA4020P.pib -N firmware/FW-QCA7420-1.5.0.0026-02-CS-20200114.nvm -R xx:xx:xx:xx:xx:xx and it worked successfully (the session finished with eno1...

@woozle Thanks a lot for getting back to me. Using https://github.com/qca/open-plc-utils I can communicate with it: plcstat -t -i eno1 P/L NET TEI ------ MAC ------ ------ BDA ------ TX RX...

On the TL-WPA4220(US) Ver. 4.8 VN1 extender, that I recently tried to update using the TL-WPA4220(US)_V4_240220.zip firmware, I have the following problem: When plugged-in, the Powerline LED (light)...