Internet not working

First. Check here for official info on any possible local outages;

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

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 the Xfinity App: https://www.xfinity.com/apps 

Hello, user_tomihm, I wanted to follow up to see if you were still experiencing concerns with your internet services.

@user_tomihm 

Were you able to find any outage info on that site or in the app?