If your 99 was good before but now only the 103 works, your alignment/skew is off.Ok I started over and am now getting above 95 on 101 and in the 80’s on 103 but all 99’s are at 0. I’ve tried the dithering on both sides and nothing changes on the 99 satellites at all. Still getting the error 771 message even with good signal on the 101 and 103