I need help, I have 2 m4. One is hard wired into my bt and the other is hard wired from my main m4 to my second m4 upstairs but for some reason I am not getting my full speeds I used to get when using my bt When I hard wire my pc to my bt I get 900 down and when I hard wire all my m4 to my pc I get 90? What am I doing wrong.