Why can't my Xbox get a teredo ip????

Hi there,

I'm sorry to hear the Xbox can't get a Teredo IP address and I see you have tried some troubleshooting already with no success. I'd be happy to try and help.

Usually when you want to fix issues like this you need to try what you have stated but each solution has to been done separately and not together, meaning if you try one and it doesn't work, you need to turn off the ports or DMZ etc. and try the next step
individually.

What is your network hardware setup? Router & Modem, or Gateway? The model and brand?

Here is a helpful guide for network troubleshooting. Select the option that states "can't get a teredo ip address":

https://support.xbox.com/en-US/xbox-one/networking/multiplayer-connection-error-solution

Having the exact same problem with comcast except when I run a multiplayer test it says no teredo ip, I have done EVERYTHING in my power to fix it and it still is strict and it still says no teredo ip. I have even bypassed my router completely and plugged
it straight into the modem, STILL CAN'T GET A TEREDO IP. WHAT

I tested my multiplayer connecting and it says that I can't get a Teredo IP address.

I've had the can't get Teredo IP address for four days now. I'm connected via ethernet to a Zyxel C3000z and followed all the support steps on the can't get Teredo IP address page and nothing seems to work. Multiple calls to xbox saying it was my ISP and
multiple calls to my ISP saying its xbox. Multiple factory resets of both my gateway and xbox. I've never played COD I just play Dead by Daylight.

Same and when I reinstalled it finally now my Xbox said the servers were down. Now the servers are finally up and its saying something about a Teredo IP address. I looked it up , enabled teredo, and enabled Ipv6 and still can't find a Teredo IP address
this is so annoying