I recently went back on the sky after a few years, the box downstairs has no problems, but we also re-activated the multi room, when we first turned it in it wasn't getting a satellite signal so I unscrewed the wires and put them in again after trying turning it off and stuff. We then got a signal. I went out for the weekend, came back on the Sunday and the signal was gone again, so I did the same, unscrewed the wire a bit and eventually got the signal again. Went to bed last night, woke up this morning and the signal had gone again. Used the same technique and got it back. Any ideas what the problem could be?