@tbone67 This configuration should work:
- Set filtering mode to black list.
- Disable “block literal IP addresses” and “block proxy,VPN, TOR”
- Enable UPnP
You can do a network test on the Xbox, and it should report “Open NAT” (or, should finish without warnings about NAT).
If the pcWRT router is behind another router, for example, AT&T U-vers, then you need to put the pcWRT in the DMZ of the U-vers router.