My ViP 612 (duo-dvr) cuts out daily right around 4:30 p.m., putting up the "temporary loss of signal" screen (code 00-00-00). However, on going to the signal strength screen, it shows 50, and then upon clearing out of menu, the audio/video will come right back. But then within a half a minute, the "lost signal" screen again. I then found that I can immediately restore a/v by pressing "menu" (it will show the pic in the upper right of menu screen), but then it will still cut out within another half minute, and i have to repeatedly press "menu" to keep watching. DVRing is unaffected, and usually by 6:00 p.m. it quits cutting out and won't start up again until 4:30 p.m. the next day.