I am having a problem with my c band side on my mini bud at night. During the day when its abut 45 degrees out just fine. When its closer to freezing point I lose krbk and 20 percent of pr vi mux and video drags it goes from 72 percent to 55 to 60q yesterday it was nice until night time. I have changed wiring, lnbfs, same thing happens, ku lnbs they are doing just fine. Any ideas?