this started happening about 3 months ago--I get the searching for signal message, but if I use an extension cord to reach a different outlet, I get the signal back. Plug into the original outlet and lose the signal again. Both receivers act the same way, and if I leave it unplugged for a day or two it will start working in the original outlet, maybe for a couple weeks, the lose the signal again. One receiver is 5 yrs old, the second a couple months.