Well, I have received my archer t3u just a few days ago, the adapter itself worked but with the handicap that it doesen't connect to the 5Ghz band of my wifi. I know I have this band active because I have checked it from the router configuration page and I'm connected to it right now with my phone. It shouldn't be the distance neither because as I said my phone and my laptop are both connected to it from the same room I have my PC on.

I asked for a replacement and once I received it I connected it to my PC and the problem persists. 

I have downloaded the driver for windows 10 from the web and made sure that the one installed is the one provided by TP-Link and not the Microsoft one. Even though the controller is the TP-Link one the problem persists.

If someone have a solution for this I'd be very grateful.

Thank you