I am sorry to hear you are having issues with Port Forwarding. We seem to be experiencing an issue with port forwarding - Our product development team and Xfinity engineers are already aware of some known issues and we are working to resolve them on the backend. We will be pushing out with new software updates. Again, I apologize for the inconvenience and we hope to have this issue resolved soon. We hope this finds you and your family safe and well.
I dont see advance setting in more options. I need help.
See if this applies;