I once had the joy of reversing the script on Xfinity tech support. I was online in the middle of the night and my cable connection went down. I switched over to cellular and noticed a bunch of other local people with cable modem IPs on an IRC channel frequented by my friends also disconnected at the same time.

So I called Xfinity support to report the outage, the tech did some digging when I told him a bunch of local people seemed to be impacted, he found a report in their systems of an outage impacting my area.

I asked him if he had tried rebooting their router.