I keep losing the sat feed from dish. I have replaced the receiver and then the lnb and it still loses the signal. I also Have had the dish alighnment checked and it is right on the money. I can get the system back up by going out to the dish and disconnecting the cable at the dish and then reconnecting. The system will then come up and work for a while but it goes down just about everyday. I have a dual tuner dish receiver and a triple lnb.