In December I replaced my Hopper 2 with a 3 for use with my Winegard SK-1000, A DHP42 switch with power inserter was installed. I lost sat 129 and HD channels. I replaced the DHP42 switch and it worked for a bit, then failed again. I swapped some cables and had success, then it failed again. I'm shooting blind at trying to figure out how to break this problem down to fix the problem. Any ideas would be much apreciated.