Cannot open any ports with port forwarding

Hey @user_ogpsst, Thank you for visiting our official Xfinity Forums Community support page. We greatly appreciate you taking the time to share your experience regarding the local network and port forwarding. I would be more than happy to offer my assistance looking into this further for you.

 

You can learn how to set up a port forward using our handy 'Set up port forwarding using the Xfinity app' support page. Outside the steps we provide, port forwarding is considered an advance networking tool and outside our demarcation. 

 

When going through the steps to create a port forward, are assigning the correct device on your local network and does your device have settings for that specific port? Also, to take note, devices using exclusively an IPv6 address is not supported.