Hello!
I wanted to create this post to see if I can get an answer, as google seems to give mixed results. This winter, I was thinking of getting a small generator incase our power goes out. We live in a rural area, so I have propane for heat, but was more worried about keeping devices charged and some lights.
I was curious if we had a power outage, if I powered my modem- would I still be able to have internet access? We have Xfinity but I wasn’t sure if there is a total power outage, if the internet would go down either until the local system is brought back up or if it had batteries/self generators so the network stays up during an outage.
I had two 3-day power outages at my house last winter, and the neighborhood up the hill from me (including my backyard neighbor) had another 2-day outage (it was rainy in California). I also have Tesla batteries and solar panels, which will generally keep my computer equipment and refrigerator running if I leave almost everything else off. And, to top that off, for hysterical reasons I also have both AT&T fiber and Xfinity Internet service.
For all 3 outages the Xfinity service went down not too long after the power failed and stayed that way until it came back on, while the AT&T service stayed up the entire time. YMMV though.