: Need help resolving a double NAT issue.

Hello Holden,

Thanks for letting us know the issue has been fixed. I will go ahead and lock the thread seeing as it is resolved.

Thanks,

Brad

Please check the follwing:

Sign into your gateway's configuration, and take a note of the WAN IP that your router is getting from your ISP.

Then point your browser to a website like
https://whatismyipaddress.com/ and compare the public IP of your gateway with the IP shown on that website.

If the IP is different, then your ISP is causing the double NAT by using CG-NAT or DS-Lite IPv4 Tunneling through IPv6.

If you found that your ISP is using CG-NAT or DS-Lite, call their support and demand a public IPv4 address.

Since IPv4 addresses are basically "used up", a lot of ISPs have to hide several of their customers behind a single IPv4 address, which is fine for normal web surfing and email use. But multiplayer and server applications will have issues with this CG-NAT
and will show you the double NAT error.

Hi holden4ever,

I'm sorry to hear about this double NAT type issue. I'd be happy to help.

Do you have any other routers or hotspots in your residence or is there any special setup you have your gateway on? Something in the vicinity is giving off a second NAT and will cause the Xbox to detect a double NAT type.

If that support article you tried was not successful for you and if you don't believe the issue is with the network hardware or ISP then you will need to do some console troubleshooting like a

hard reset/powercycle or factory reset for example. If possible, I also suggest trying to connect your Xbox to another network first, maybe a friend or relative, to rule out the Xbox software as the issue.

If not, you can give the
soft factory reset a try but you will need to log back into your account and connect to the network to apply the system update. It's possible the reset may get stuck at this point because of the network issues, but I think you should be fine since you are
able to connect to the network, its just the Xbox is detecting two NATs which will hinder online gaming.

That was it. Both XB1 X and pc are showing as open. It cost me an extra $10 per month for a static IP address but if it means no more NAT conflicts then it's worth it. Now I just have to re-install ARK because for some reason Windows deleted the files.
Only problem is it won't let me install to pc, only one of my 3 XB1s. My pc shows up on the list of devices I own but when I click Install on the store page it only gives me the consoles as option.

All I have is a gateway. No router. I managed to get the NAT open on XB1 but that's now gone back to double NAT. When it was open the Xbox app on Win 10 was showing as moderate but not double. I have restarted the console several times and still nothing.