Ever since I moved and had my system re-installed a couple months ago I have had the same periodic issue of even transponders on the 103ca and 103cb satellites going to 0, causing all the channels depending on those transponders to pixilate and get a 771 searching for satellite message. The problem comes and goes every few minutes to few hours, lasting for a few minutes at a time. The problem always happens simultaneously on all 9 receivers across both SWM 16 multiswitches, leading me to believe the problem has to be between the dish and the multiswitches. The LNB has been replaced which appeared to correct the problem for a couple weeks but then it came back. Any advice? I'm still within my 90-day installation warranty.