Xbox Teredo not connecting.

That's exact what I wanted. Thanks for sharing.

You have Teredo unable to qualify and server connectivity blocked. This can cause a lot of issues since you cannot connect properly with the Xbox servers.

Please click on "Click here for more information" on your connection test to try to make these two error messages disappear.

Also please do:

If you are running Windows 10 Pro please follow these steps:

Press Windows + R, type gpedit.msc and press enter;

Under Computer Configuration > Administrative Templates > All Settings

Find "Set Teredo Client Port" , "Set Teredo Default Qualified" , "Set Teredo Refresh Rate", "Set Teredo Server Name", "Set Teredo State". Change these settings like below:

Set Teredo Client Port - Enable - input " 0"

Set Teredo Default Qualified - Enable - choose "Enabled State"

Set Teredo Refresh State - Enable - Choose "30" or "20"

Set Teredo Server Name - Enable - input "win10.ipv6.microsoft.com"

Set Teredo State - Enable - choose "Client" (If after doing all steps it fails, try choose Enterprise Client instead.)

Then follow the steps on the Xbox website for both issues, restart your computer and see if your connection result shows Open NAT and connected to server.

Let me know how it goes, please.

I can translate what JZinky said for him (because I have the same issue):

"When I open my Xbox application on Windows 10, the app displays:

Impossible to connect you. Retry later. (0x409)"

----

Like JZinky I have a similar issue but with error 0x406. Apparently this is caused by the new impossibility to establish a Teredo link. Teredo is enabled and configured, but cannot connect to the remote Microsoft Teredo server to establish a tunnel and getting
an IPv6 transport on it. Teredo is enabled, but the adapter info shows that it still has no IPv6 connection: the Microsoft Teredo server is not accepting new connections to establish a tunnel.

Xbox should provide a way to use another tunnel broker. Note: that I have also a direct IPv6 connectivity with my fiber Internet access (and it is working with YouTube, Google, and many sites), using a tunnel should not be necessary (and it is much slower
anyway than native IPv6).

Microsoft Teredo servers are probably over used. Xbox Live should not need it!

On your xbox Go to > Settings>General>Network settings. Do you see a IPv6 address as well as IPv4 address?

Some home routers will block Teredo connectivity if they detect that an IPv6 connection is present on the WAN interface of the router. For Teredo to function normally, the router needs to be configured to enable Teredo connectivity. If you have one of these home routers, make sure it has the latest firmware, and see the support documentation to determine how to enable Teredo tunneling on the router.

IPv6 on xbox one may assist you further.

Hi there,

if you haven't yet, please try the Teredo related troubleshooting steps on this link:

https://support.xbox.com/xbox-one/networking/multiplayer-connection-error-solution?icid=furl_xboxone-teredo

It might have something else that hopefully solves the issue.

Let us know the results

It said connected and Teredo was open. But now when I go back to it, it says that Teredo is unable to qualify and connectivity is blocked. I did the fix and checked again, and it again is saying Teredo open and server connectivity: connected. It seems to go back and forth some, which seems strange. I tried the game again just now (with Open/Connected), and it still will not connect.