Outage

First. When these outages occur, are they being officially indicated with any info about them here ?;

https://www.xfinity.com/support/status 

https://www.xfinity.com/support/articles/check-service-outage 

Use a cell phone internet service, a public WiFi hotspot, or a neighbor's internet if you need to in order to check it.

Or you can use their Xfinity App: https://www.xfinity.com/apps