did get through to tech support this morning. The server that reads your sims card in you device is the problem, that is why you can' t even connect with 3g service even though normally you could. I had my service downgraded to the mifi I had just upgraded from until they can restore my 4g service. I was on the phone including the hold time for 49 minutes.
The tech guy told me they had 1 - 2 calls then all of a sudden 100 then 300 calls flooded their lines. They had no definitive time element for bringing service back up. I it system / nation wide.
How long did it take to fix