I would like you use the device on the Repeater Mode. So I connected it to my WIFI router (2.4GHz and 5GHz). I connected my PC to the RE450 via a network cable, and now opened the TP-Link page on a...

@ItalianUser I have the V3 FW version. After I upgraded to the last version 1.0.2 Build 20201203 Rel. 80349 (released on 06-Jan-2021), I got the same problem with the non-responding GUI. I was using...