dish had a tech come out to swap out my 722 that was bad on july 25. The new 722 will freeze and reboot out of nowhere. It has done it about 10-12 times since the 25th. I have done the manual reset and also unplugged it from the wall and plugged it back in. Still doing the same thing. Did I get another bad box? I have sw version 676. Any help is appreciated.