DirecTV was working fine and then at 9:00 pm all 7 receivers went out with a 775 error. Unplugged the gray 29 volt SWM unit for a minute and then plugged it back in and the channel came back on for about 10 seconds and then went out again and I haven't been able to get anything back since that time on all receivers. I suppose that means the gray SWM unit has bit the dust? Just had the multiswitch replaced last Saturday. Not having much luck lately.