UPnP and XBox gaming

The gateways are so dumbed down, there's virtually no settings. I was told it was due to the monthly fee of only $40 or $50. You want port forwarding, sign up for the more expensive business account. 

It's been years and nothing has changed. I suspect it never will. There are too many non-computer customers who are challenged just plugging it in. T-Mobile has too look at the masses, not just a bunch of nerds. 

There is a 3rd party phone app, HINT Control that gives a handful of settings for the gateways.

Mid June 2024 and still an issue!

It's March 9, 2024 and I can confirm this problem still exists. 

Holding off on excitement until unsolicited inbound traffic can be confirmed... that is what truly needs to work.

Check out my latest posting:

https://community.t-mobile.com/tv-home-internet-7/nat-forwarding-issues-while-gaming-streaming-44314

I have posted an update here. This issue has been resolved across t mobile as of a few days ago (should have been released, if not, call them). I was given the pre release firmware version of what they just threw out there. Check your NAT status now, it should have dropped a level. And though it won't tell you, you will still have open features such as streaming and hosting. Every single one of my problems fixed itself seemingly overnight.

Unfortunately there are  issues in networking layers above the modem that break proper NAT for IPv4.

The LTE modems came with functional port forwarding/DMZ.  Things would appear to get configured properly, but in realiy it broke on the other side of the modem.

TMO needs to move to a proper dual-stack setup for this to have a chance at behaving like it needs to for many devices and applications.