Have you tried turning off the modem, waiting a few minutes, and then turning it on again?
Can you get to this page? http://192.168.0.1/#!/home/status
If so, what's the system state code?
I'm glad you found the community, thank you for posting. I see you've already called in for help, and our agent sent a tech out who restored connectivity this morning. Glad to see you back online! If you have any other concerns, feel free to post again in the community.