home internet

First. Check their site 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 their Xfinity App: https://www.xfinity.com/apps 

Hello @user_uyf4cd. Thank you for reaching out on our Community Forum. I know how important it is to make sure your services are working. Was there an interruption reported in your area? 

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