I have two Wally receivers that are both failing. One is about 3 years old, the other just over a year. For antennas, I have a King Tailgater Pro on my work setup, at home is a Winegard Trav'ler.
I have a dialog box pop-up (1604) saying to call Dish, there is a problem that could affect viewing experience. I called and they said the memory was failing.
I checked status in the diagnostics menu. Sure enough, it showed NAND Status failing. Seems odd both receivers are doing the same thing. About once an hour the screen goes blank for 5 seconds or so and pops back on.