I have a skybox f5s and it has lost signal on all channels I have tried another box with the same dish and same settings and on the skybox it says no signal but on a new box all the channels work fine seems very odd too me ive checked the dish alignment also the internet settings and the line coming in also the internet but still no signal and the previous night all was fine system worked any ideas on what could be the problem as ive ran out off ideas ???