@David-TP Any other ideas? Is this the type of thing that I should spin up a support call when I go to upgrade? The issue being that with no internet connectivity, not sure how TP would get access to...

@David-TP Thank you for the response! The modem is custom configured by me, the service provider is AT&T 4g, through the Netgear MR1100 2A1NAS (supports band 14). IP Passthrough enabled, and DHCP...

After updating my deco's to the december firmware they're all red saying no internet. Previous firmware was the May release. Hardware V1.6. I've tried reboot, hard reset, firmware downgrade (not...