Let us know if you can try using Port 3074 under Protocol/Ports for both Local and remote. Since you only have one xbox online at a time. You may choose to test this specific port. Also try disabling GF for the xbox and test. If you only have one xbox or gaming with only one console at a time, GF might not be needed. Keep these values though. If they are working well for you, no need to change them either. Thank you for sharing.