Question

Home Wifi NAT Type issues

  • 12 March 2022
  • 10 replies
  • 7100 views

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Hey everyone,

Been struggling with the NAT type issues on my home T-mobile WiFi 5G and my PS4.  I just got this and can’t sync up with my friends, let alone play online anymore.  Does anyone have a fix for this?!  I’m becoming quite desperate and exhausted with this issue and t-mobile tech support doesn’t have an answer.  


10 replies

I'm having the same issues. I've called in also. Xbox nat type strict.

I believe this is an issue with T-Mobile’s 5G gateway not allowing port forwarding. I have an Xbox Series S that’s connected wireless and my NAT will go from moderate to open but never strict. At the moment there is no way to configure the gateway for port forwarding and for chat features and hosting in games. My online connection in multiplayer games is rock solid so far, just wish T-Mobile would allow for port forwarding with new firmware with their gateways. There is no way to set a static IP address either which is the root of the problem with online gaming.

I am having the same issue, my husband and I like to play. We are in the same house and can’t even play together unless we do split screen which is driving me up the wall.

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This is due to their upstream network topology... nothing to do with the modem/router.

It was a problem roughly 2 years ago with the Askey modems that had a host of the typical router functions like DMZ, UPnP and Manual port forwarding, DHCP configuration, etc.

As of April 2nd when I went back to a wired ISP to recover full IPv4 functionality again, this had still not been addressed (was still using said Askey, so no... inbound port forwards were still not working, otherwise I would still be subscribing).

If you do a search about it, you will get hits on threads dating back to late 2020, if not further back.

 

Their choice of XLAT464/CGNAT style approach to handling dual IPv4/v6 stacks causes unsolicited inbound traffic to get filtered/blocked at the outer edges of the network path, well before the packets even make it to your modem.  If it is not first established as an outbound connection, it is not allowed in (ie: must follow a stateful tracking approach, no typical peer-to-peer)

 

To date, the most viable workaround has basically been to use a VPN... but even that needs some specific configuration for some scenarios because you would need P2P support, as well as a reserved IP for it to work properly (which can ramp up the cost).

 

You may be able to sort of "trick" a console by going through a standalone router first.  The console will report NAT-2/restricted if the ports are forwarding on that router, but that does not mean the communication will actually flow properly.  P2P style applications may still misbehave because of what is happening upstream in the upper network layers.

 

This is due to their upstream network topology... nothing to do with the modem/router.

It was a problem roughly 2 years ago with the Askey modems that had a host of the typical router functions like DMZ, UPnP and Manual port forwarding, DHCP configuration, etc.

As of April 2nd when I went back to a wired ISP to recover full IPv4 functionality again, this had still not been addressed (was still using said Askey, so no... inbound port forwards were still not working, otherwise I would still be subscribing).

 

 

To date, the most viable workaround has basically been to use a VPN... but even that needs some specific configuration for some scenarios because you would need P2P support, as well as a reserved IP for it to work properly (which can ramp up the cost).

 

 

Do you know someplace online where this VPN approach is described? I want to try it.

 

Thanks!

 

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Windscribe offers it with different options... go to the section about static IP for more details about the costs/benefits/limitations.

 

Proton and Surfshark were looking at expanding into this area about a year ago when I contacted them, but IDK if they ever put anything out there.

 

Think I heard something about Surfshark merging into another brand though... not sure.

Yeah I've been with thome internet for over a year waiting and anticipating for some update that will allow us to have a nat type open network but to no avail 😭

A couple months ago I spent a couple hours talking to support about this...their ‘experts’ didn’t even know what NAT is… I sent them some links and explained, I’m a retired network engineer.

Too bad it only supports NAT 3 because otherwise the 5G is great for me in a very rural area. When I want to play online, which is not too often I have to hotspot into my ATT 5G phone, not use tmobile for the internet (use ATT 5G instead) and it works fine.  But then ATT starts buffering me, even though they are not supposed to. I call their support and they turn the buffering off but it always comes back. I have the unlimited plan.

Reaching out to tmobile again to see what they say but I don’t think it’s likely to get changed. May just have to go the VPN route by buying an additional router or try another 5G provider once they get competitive and have coverage.

Same problem. Weird thing is I’ve played for months using their internet on my Xbox x without issue, then last week, bam, strict and can’t play online anymore.  I’ve been using their internet for 6 months with some minor connection issues, but now can’t connect at all.

I had the same issue, but I think I’ve found a temporary solution to this:

  1. On your phone, install Speedify. No need to subscribe to a paid plan (yet), they have a free plan.
  2. Connect to Speedify.
  3. Turn on your personal hotspot and connect your device (Switch, Xbox, PS, etc.) to it.
  4. Your NAT type should now be B.

Alternatively, you should be able to install Speedify on your computer and share it with your gaming device. I have a Mac and my connection keeps dropping somehow, so I haven’t been able to get it to work yet. It’s been working fine on my iPhone.

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