Currently have two 622 Receivers coming through a DP44 switch. Recently, have been having problems one one receiver. When DISH does update at 3AM, the unit hangs in the Guide Dowload (330) Screen. It completes about 3/4 of it and then stops. Must do a re-set and switch check. DISH replaced the one 622 doing this, but the new one does the same. Anyone have any thoughts about this. DISH says to plug it directly into the wall and avoid the surge suppressor, but have never had a problem with MONSTER HT850 before. Any suggestions would be welcome.