Hello I have upgraded at a vacation home from a single dish and old receiver to a dish 500 with a 322 (still old equipment but 322 is a reman). Upon install I have signal strength in the 70's on both 110 and 119 using the point dish screen but had a few channels with no signal so I switched LNB's to see if the problem switched with them and then all channels seemed to work for one weekend - this past weekend, I have 17 channels that have signal loss - ie: 205, 214 and more. I have 2 cables running from 2 sw-21 switches (one for each receiver in the 322) - any thoughts where I should start with problem solving - Located in North Carolina thanks