Had my 522 for almost 6 months now. Recently on receiver 1 it wanted me to check switch. I did picture came back. Then on receiver 2 it wanted the same. I did picture came back. Now receiver 2 has problems again. And when I check switch, receiver 2 shows no signals. Just XX. All the wire have been checked and are connected. Nothing was moved prior to these problems. I've tried shutting off the receiver by holding the botton on the front and even unplugged it for a min or two and still receiver 2 shows no reception signal. HELP...uny suggestions? I am really starting to dislike DISH. They use to be so reliable.