I have a 1st gen dish. I just unplugged it from power, waited 30 sec, re-plugged it in, then stowed & unstowed it and it is back. This may be the first time in 21 months of service that it hasn't automatically recovered from an issue. Anyway, it is back and happy and getting 127Mb/s download so I guess all is well.
Seems like it was a global outage. Mine was out from 2:56pm to about 3:15pm here in MN. Kinda surprising that their infrastructure appears to have one or more single points of failure. I'd never expect something to take down service globally like that. They need better architecture.