I am getting the 771 error on two of my four receivers for the fourth time in a month. Having a hard time firguring this out and would appreciate any assistance / advice. Thank you. Symptoms: 1. Error shows up on the same two receivers each time. The other two have always been fine. 2...

Vip722, Dish 1000 DP Plus After recording to the DVR during the night I get message 015 as soon as I turn on TV1. It goes through the "trying to find satellite" sequence looking for various transponders on 110 and 129 and eventually ends by going to message 002- signal lost. While this is...