So recently began getting 771 errors on bedroom DVR which is an H r 24. I have an HR 34 downstairs which works fine. I tested the connections to make sure all tight. I have a cinema box connected to it and tighten cables on that as well. Started to work again. Then after a few minutes tv showed no satellite signal. Now cant get anything to show. No picture or menu. Just my tv telling me no signal. Im going to try and unplug it for a bit and see if can get it to work but if the box is bad im assuming this is what would happen. No picture or access to menu or saved shows.