A back bedroom TV receiver is no longer getting a good signal. I keep geting error 775. I was changing the coax wires around. I just want to make sure I put it back correctly. I was looking to see if there was a faulty coax. There are only 2 standard receivers at my house. One is in the living room and one in a bedroom. The living room works fine. They bedroom gets the error message. The main coax comes from outside into a splitter. This wire goes into the input side of the splitter. One output feeds a wall coax output in the bedroom (not getting a signal). The other output feeds the coax wall plate in the living room. From there it goes into the input side of the SWM (grey box). The output of the SWM goes directly into the living room receiver. Let me know if that makes sense. Before I call Directv for a service, is there anything else I can try? I tried running a coax cable directly from the splitter to the bedroom TV. It will receive a signal for a while, but it will then give me the error. I tried a brand new cable and it did the same thing. I can get intermittent signals.