My house is wired with CAT6 cable. Ive installed a repeater on the top floor. When repeating from the wifi signal only i get speeds under half that of the main router, i think due to the main router being quite far away (3 floors down). When i plug in the CAT6 cable which is connected directly to the main router in the basement, i get significatly lower speeds than the wifi only option.
The top and bottom speeds in the test below are on wifi and the two middle speeds are with the CAT6 cable plugged into the repeater. Any suggestions? do i have cable issues?