Teredo and network connectivity not working.

Hello SamSchulpen,

Thank you for posting on the Xbox forums. We understand that you are receiving a Teredo error which is affecting your ability to use multiplayer services. The Teredo function sometimes needs to be enabled through your router. It is called Teredo tunneling.
You can find out how to locate this feature through your device's manual or support website. If your internet service provider supplied your network hardware, you can reach out to the provider for assistance with locating the Teredo tunneling setting. You
need to make sure that Teredo tunneling is enabled.

You mentioned that you have attempted some troubleshooting from the support page. Are you referring to the support article on the Xbox website regarding your

NAT type for Windows 10? Be sure to let us know the results SamSchulpen!

I use Windows 11 Home. I don't use any VPN whatsoever, nor do I use a proxy.

About Teredo: I don't think that's the problem. I believe Teredo works just fine, but I'm not sure. XBOX has a page specifically for fixes (https://support.xbox.com/en-US/help/hardware-network/connect-network/server-connectivity-xbox-app-displays-blocked) and also for Teredo problems (https://support.xbox.com/en-US/help/hardware-network/connect-network/troubleshoot-party-chat), but none of them have been useful, since I believe my Teredo is already fine.

I know you say it clears when you search again, but I would go through the
Teredo troubleshooting page, and see if any of those help. This is most likely going to be the cause of the issue.

Teredo is basically allowing features that come with using IPv6 while on an IPv4 network. The steps to get Teredo working are usually going to be easier than ensuring that you have an IPv6 connection from your ISP and properly setting up your home network
and devices for IPv6, and that page should get you sorted for that.

Additionally, the
Server Connectivity Blocked issue has it's own set of troubleshooting, but is more likely a symptom of your Teredo error than the cause of the issue, so start with Teredo.

Hello Me Angel No,

Welcome to Microsoft Community.

According to the question you posted on the Microsoft Community forum , you are having trouble with Teredo not working on your Xbox console. Teredo is a networking protocol that enables multiplayer gaming on the Xbox network for some games like Forza Horizon 4 and Gears of War 4 . If Teredo is not working, you may see messages like "Teredo is unable to qualify" or "NAT Type: Unavailable" in your network settings . This can prevent you from joining a party chat or playing some multiplayer games.

There are several possible causes for Teredo not working, such as:

- Your router does not support or has disabled Teredo connectivity
- Your PC has a program or a registry value that blocks or disables Teredo functionality
- Your network connection is unstable or interrupted

To fix this issue, you can try the following solutions in order:

- Make sure you have an internet connection and restart your router and your Xbox console
- Press the Fix it button in Xbox Networking settings on Windows 10 or use the Xbox Console Companion app on Windows 11
- Check your router's manual or online support site to see how to enable Teredo connectivity
- Check your PC's registry path for iphlpsvc/Teredo and delete any value that disables Teredo
- Run some commands in the Command Prompt to reset and reinstall Teredo

You can find detailed instructions for each solution in the following Xbox support articles:

NAT type on Windows displays "Teredo is unable to qualify" | Xbox Support
“NAT Type: Unavailable” appears in your network settings | Xbox Support
How to Fix Teredo Problems - Microsoft Community

I hope this helps you resolve your issue. If you have any further questions or feedback, please let me know. Thank you for choosing Xbox.

Same issue here... Tried everything. Started september 9.. I have a One S and exactly the same problem.. On PC teredo works fine and I have open NAT... Same network and same router..

Console lost teredo connection 9th of september.. NAT unavailable

PC (Windows 10): Teredo, Open NAT, all works fine.

Weird