I have a similar, but maybe not 100% the same type, issue. About 2-3 times a week...not always in the morning, but mostly, I have no picture or sound from live TV. I can pick the guide or the DVR menus and can see those, but I cannot pick anything. It is like it ignores my commands. I can see the banner up top that tells me what channel I am on and what is playing, but there is no picture or sound. I am now on my 3rd receiver since August (just showed up today).
A hard reset always fixes it so I am thinking about putting it on a timer so that it shuts off for a little while every night. I figure I am not the only one having this issue, but Dish seems to know almost nothing about it. I do have an external drive and it is connected to the internet. I think I will start disconnecting those one by one to see if one of those things is causing it. I think I have made it 10 days (some record
)without it acting up before so a couple of weeks should tell me which item is the culprit.
Hopefully someone comes up with a fix. If so, please post it. I like the receiver, but having to reset it every 3-4 days is the pits...especially when it misses recordings.