Internet not workin

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

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

@user_c3img2 Thanks for adding a post to the community. We can help here. What troubleshooting has been done to the connection? Have you checked to see if there are any service interruptions?