green blinking light on xfinity box

Please start here if you wish;

https://forums.xfinity.com/conversations/your-home-network/connection-troubleshooting-tips/602da777c5375f08cdea3db9 

@user_pos9iv

We offer convenient self-service options to check service interruptions through My Account, the Xfinity App, or the Xfinity Status Center at http://www.xfinity.com/support/status. Have you checked there yet? If no interruption, I want to make sure we are respecting your time and not repeat the steps you have taken previously. What troubleshooting steps have you taken? 

I also wanted to make sure you are aware that any time you need to troubleshoot our Xfinity app can assist you step by step. It is not just to pay your bill or to get notifications about interruptions. To learn how to troubleshoot in the future you can follow the link: https://www.xfinity.com/support/articles/using-xfinity-app. Honestly, it is the best app to date that we offer and super easy to use for all of your account needs!

@user_pos9iv 

Have you had a chance to see if any of the tips at the link that I posted apply ?