Wife had system installed and everything was working a few days later now it is not working. Signal strength across the board is 0. nothing has moved as far as we know. On these systems is there a specific az. and el. or just point south? My experience with sat install is all military and this is obviously out of my norm. Recievers in both rooms in house are not finding a signal. Can you test the LNBF(thanks iceberg for the info on that)?