Xbox One no longer supporting UPNP What is the fix?

im having this same issues

Having same issue 

I am also having the same issue. I think it is an AT&T problem

I am also getting a Double NAT type error and all I have is the Nighthawk LTE hotspot

This issue is caused by AT&T's Carrier Grade NAT firewall on their mobile network that blocks all incoming connections. Until AT&T decides to address the issue of lack of port forwarding then their LTE network will continue to cause a restrictive Double NAT that impairs gaming and other activities that need P2P connections.