Both of my 622's died when they received the new software release last week. My 722 kept on working. The 622's could not get past test 3 of 5 for getting a signal. Dish sent a tech out yesterday and he replaced my dishes with a new dish and took away the DPP 44 switch and they still would not work. He replaced both 622's with 722's and now I am back up and running again. He said that this was a first for him. Anyone else have a 622 die with L511?