4GEE Router causing strict NAT type and double NAT on Xbox one
Open NAT type for XBOX One | AT&T Community Forums May 14, 2017 How to refresh or change NAT Type on Xbox One: Fix those Jun 04, 2020 How to get Open NAT on Xbox One by enabling UPnP — and why May 22, 2020
Nat type strict issue in a college dorm - Xbox One Message
Why does my Xbox say NAT is set to strict or moderate when
Since you don't control the school's network, you can't fix NAT settings on a dormitory connection using conventional tweaks. You would have to tunnel the Xbox Live connection out of the college intranet to an external device that could make the necessary XBL connections on open ports.