What happens when your receiver has trouble connecting to the OTA signal? Do you get a message on the screen similar to the one described in the following link? One tuner of dual OTA adapter keeps going “dead.” - Page 4 - mydish communities - 12560 "When selecting an OTA ch most of the time it would come up with an error message saying OTA CHANNEL SIGNAL LOSS 739 ATTEMPTING TO GET SIGNAL signal level would be 80-100 and would say SIGNAL OKAY the circle in the middle of the message would go around and around as if it was trying to find a signal even though it says signal level okay." If so, that is a known software issue. Interestingly, I have never seen the 739 message on either a Hopper Duo or a Wally, which makes me wonder if that is only a Hopper 3 thing. I have no idea what is making the channels disappear, though. Is it just individual channels that disappear at random, or do all of the OTA channels disappear at once when this happens?