It's possible that the power outage messed something up with the modem.
If you have a device with which you are able to connect directly to the HT2000W with a LAN cable are you able to go to the following page? http://192.168.0.1/#!/home/status
If so, are both boxes at the top of the page green (most likely no)? Do the System Summary and System Status boxes contain all green check marks (again, most likely no)? In the System Summary box there is a State Code. What is the State Code that is showing?
Further, you may notice a small reset button on the back of the modem. DO NOT PRESS THAT BUTTON unless instructed to by a representative. I only bring this up in case you find it on your own, as some people might think it will help to press it. Again, don't press that button unless instructed to, as you can do more harm than good by doing so.
I'm glad you found the community, thank you for posting.
After running and reviewing your site diagnostics, we have decided as a courtesy to dispatch a technician to do a complete review of your site due to the concerns you've been encountering. Your dispatch is currently scheduled for our earliest available slot: Tuesday, Dec 12, 2017 between 11:00 AM-02:00 PM. Call us at 866.347.3292 and reference case #108094985 if you need to reschedule. Please let us know how the site visit goes.