zero signal, searching for signal error 771

All of a sudden 3 days ago my reciever lost its signal. All readings are zero on both tuners. I thought it might be the box so i switched it with another one in the house and got the same result. Ive reset the box numerous times, reset the SVM box too. Nothing. Could it be the dish is misaligned or an actual hardware issue? 

Customer service told me they cant come out for 10 days. Im ready to unplug everything and go back to comcast, they would be here much quicker.

thanks!