What are the symptoms of an overloaded 8-SWM? I live in an MDU with MFH2. I personally have only one HR21 so I know I only use 2 of the SWM tuners. I was the first one in my building to get upgraded to the SWM about 1.5 months ago. Everything worked great until about 1 week ago when I came home from work (about 5:30PM on a Tues) and my tuners couldn't get a reliable signal. Sometimes tuner one would be at 99%, other times tuner 2 would but never both and the signal strength on the 101/trans3 would fluctuate. If I watched a channel, I would see the directv white and blue default feed with pop music playing in the background. About every 5 min, or if I changed channels, I would see the proper channel, but within 10 seconds, it would pixelate and go the D* + pop music screen. I RBR'd, I unplugged all night, I grounded the COAX, I tried everything mentioned on this forum with no luck. However the problem went away away the next morning when I woke up and I tried a desperate RBR. Then all was fine for the rest of the week. Yesterday (Sunday night), the same thing started happening, but it didn't fix itself by morning. I have a service call in to our installer because I do not have access to the SWM rack, however my theory is that since my install, they have overloaded the SWM and on high viewing nights...like sunday night, my signal goes bonkers. Does this sound right, or could it be just a bad SWM or a bad HR21? Thanks! PS. When I do a system test. Most of the time I get both tuners:OK at 0%, but somtime one is at 99%. And about half the time, the LNB Output fails.