Xbox double nat with M1100

I have been having an issue on my m1100 where it won’t allow certain games to play online due to having a strict nat type. I have tried multiple solutions and when I get UPnP unsuccessful the UPnP is enabled on the router and power cycled. Eventually, after port forwarding and playing around it will show double nat instead. How can I make it to where I can play online? The console is directly connected to the router.