@David-TP Hi, If I'm stood next to the deco the speed is around 120mbos if I go to the room the otherwise Of the wall it's 12mbps. This used to be around 100 mbps and is the same room I have a second...

I've recently upgraded my Deco X50 to the latest 1.1.0 firmware, this has taken my deco speed down by around 80% as well as destroyed the stability and the connection between my main and extension...