A week ago on Friday my parents called and said their Wally was losing signal every few minutes. I went and checked that day and there were 80 signal losses. I called DISH and ordered a replacement receiver because everything else looked good in the diagnostics. I even had the tech remote check the diagnostics from her end and she said it didn't make sense to lose signal that much. Well went home and by this Friday when I went over there to do the replacement receiver my Mom said that they hadn't lose signal at all since that day. The signal losses showed only 81 so they had one more after I left last week and it stopped. I tried to activate the replacement receiver and it wouldn't update the software to the latest , it was stuck at U421 and had the Hbo screen saver. No second ota tuner was there. I called the tech again and we went through everything and tried stuff on his side remotely and finally I told him that we might as well put the old box back on the account and I would send the replacement receiver back to DISH. So that is what we did. I wonder if sun spots were responsible for the signal losses? My account only had around 50 signal losses, but I have the hopper. So we both had a large amount of signal losses for that same day.