I'm not sure how to begin. I have two receivers Solomend 800 and Manhattan1923. As of late the lnb signal strength have been coming and going on both receivers. I have changed the cables, lnbs and double checked connections to the receivers. Today I took my receivers to the dish and the same happend no signal strength. I'm guessing that both receivers have the issue but what are the chances. One thing I did I turned off the lnb just to see if it would make any difference and it didn't. Am I missing something here?