No signal coming from main coax into home

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 

Ok is the online indicator light on the modem blinking or lit steadily ?

Ok so the modem has no or a very weak connection to their system. Did you use those links that I posted to see if there is any outage info ?

Ok so you can try the suggested troubleshooting steps in the app. And even book a tech to come out and investigate the problem if need be. Good luck !

user_z7kaxf 

Could you please send our team a direct message with your full name and full address? Our team can most definitely take a further look at this issue.

To send a Direct message:
Click "Sign In" if necessary
• Click the "Direct Message" icon
• Click the "New message" (pencil and paper) icon
• Type "Xfinity Support" in the "To:" line and select "Xfinity Support" from the drop-down list which appears.

@user_z7kaxf @XfinityThomasB 

Please circle back here and post any possible solutions for the issue here in these open public forums so that all readers here may benefit from the exchange / info. This is in keeping with the spirit for which these public help forums were originally intended. Thank you.