Hit 'Select' on one of my 622's this morning and it didn't wake up. Tried it several times with TV1 remote, including standing 3 feet from the receiver, and then a couple times with the TV2 remote. All this took less than a minute. The last time I saw anything like this was last year with my other 622 and that unit turned out to be completely dead and had to be replaced.
Just when I'd given up hope, probably another 30 or 40 seconds, the 622 woke up and appears to be operating normally. This was about 5:45 AM CDT. Nightly updates come at 3 AM but I wonder if I interrupted some other operation triggered by DISH. Or is this a sign the 622 is about to expire?