Firmware 8.2.0 not working with AT&T

Just updated my Br1 Mini’s to the newest 8.2.0 firmware. All my units on Verizon and T-Mobile have come back up online but any (13+) on AT&T are stuck on 'obtaining IP address" .

Logged in locally to the devices through the LAN port and the APN and detected carrier are correct. Power cycle and factory reset have not fixed the issue.

Any known issues with AT&T and the new firmware?