I have been trying to improve WiFi coverage from my BT Smart Hub in my next door office into the rest of the house. While I am happy to receive 60Mbps in my office it drops to just 3 at best in the lo

I regularly get over 60 ghz from my BT Smart Hub tested via an ethernet cable. This is in a small office attached to the house. I use 3 tp-links scattered through the house to improve reception, howev