I have 4 receivers hooked up through a SW44 switch. The cable for one of the 31oo receivers was unhooked momentarily and then reconnected. Prior to disconnecting it the receiver was working fine. I am now unable to receive a signal on that receiver. When I run the check switch option it is not recognizing the switch either. Am still receiving signal on the other 3 receivers without any complications, just seems to be this one for some reason. Any ideas on what to do?