I have had the problem as well and posted severalk messages on Dishsupport like all the others experiencing the same problem. I have had a new box, tech visit, new OTA moduleand guess what? It still happens/ On Dishsupport someone without an OTA module but a 722K was experiencing the xsame problem. It seems that Dish's answer is exchanging boxes and OTAs/ I am not a tekkie, but with all these people experiencing the same problem in different parts of the country Dish should look to software for the problem. Yes, I have L750 software.It's frustrating because all I want to do is watch TV.