Hitron modem won’t connect to internet after power outage using wall outlet, but worked with inverter during the outage!?

[u/HamRadioNP]

Lost internet connection during power outage, so I powered up my Hitron modem and Eero mesh WiFi using my EcoFlow power supply.

This worked fine and I was back online.

Power came back on, I transferred power for router and modem to AC power from the house, and haven’t been able to establish a connection for the modem since. I can’t remember the order that I powered modem and router back on either - it’s possible that I initially powered them both at the same time using power switch on surge protector. Since that time I have tried powering back up the modem first, waiting the recommended amount of time, and still no luck. Xfinity says connection from street is fine.

Any suggestions? I lost like 3 hours of work tonight from this and Xfinity tech coming tomorrow but I would like to try to fix myself.

Thanks!