Forum Discussion
Home Internet Port Forwarding working in 2021?
I see a couple threads talking about port forwarding not working and I still can't seem to get mine working. Is anyone having any success with new hardware or contacting support?
Stop waiting for this. It'll never happen. It is an inherent mobile ISP limitation. The reason (very technical) is the inherent capacity limit of IPV4 / carrier grade NAT / etc, and is not double NAT per se. The helpful customer support people do not have the training (knowledge) to clarify this, likely ever.
This, however, does work: you can expose a computer / device sitting behind your (Tmobile 5G/LTE) router to the internet via a service like ngrok.com. Or any VPN service.
WARNING this below is not going to be easy for non-technical users.
In brief, use ngrok to create a connection from your computer / device to the internet, bypassing the inherent mobile ISP limitation. You need a computer (constantly) running a program, plus reasonable home networking knowledge, to do this.
In detail: you need a computer in your intranet running the ngrok server. Ngrok is just one such service. On this ngrok server, it redirects (via VPN) traffic from <your custom domain name>.ngrok.io to <your ngrok server>.localdomain, then to <your device>.localdomain (any device eg xbox/PS6/etc on your intranet with a fixed intranet IP). You can find more details here https://superuser.com/questions/1258093/set-up-a-web-server-behind-a-carrier-grade-nat. Most likely you'd pay for the basic service, or use the free one (free randomly generated domain name). Likely you'd want to keep the ngrok server running 24/7. None of this is simple, but it works if you can navigate the details.
