any idea why one of two 211s must be reset at least onse a month? i have two of them and the one in my mother- in-laws bedroom has to be reset real often. i have changed out the two and still have the problem. also ran new rg-6 to the room with no improvement and also switched outlets on the lnb. rg-6 run is the shortest in the house. the other 211 and the 622 run flawlessly. out of ideas.