Can't connect to online games like forza because of teredo is unable to qualify issue..

theo.ady · Feb 25, 2021

Hi, I've been trying to fix this issue for a few weeks now, with different guides online and it doesn't work. I've had this issue in the past and someone helped me, I tried to do what that person told me in the past (which worked last year) and now the issue is back. Can anyone help me again with this issue?

I have windows 10 version 20H2

In the NAT Type it says: Teredo is unable to qualify

In Server connectivity it says : Blocked

Sometimes when pressing the Fix It button, NAT type will become "Open" but the server connectivity will remain "Blocked" and sometimes it doesn't change anything...

-Thanks!

:)

Gman101G

I had a similar issue the other day I couldn't login to my account at all. After resetting my virgin router I could get back online, but the older 360 network still does not work for me, so all my 360 games don't save as it cant connect to the older xbox live system. Anyone else?

XBF Chris J

Hello MateuszByrtek,

Thanks for keeping us updated. We understand that you are experiencing a teredo error when trying to play Forza Horizon 4 online. Is this correct? Is this the only game with this issue?

If you haven't already, check out this troubleshooting article: "Teredo is unable to qualify"

Also, you may want to post on the forza forums linked above if this is the only game with this issue.

Gospern

Seems to be some issues says Teredo is unable to qualify and server connectivity is saying blocked, everything else seems to be fine

kookymonkey6823

My server connectivity is apparently blocked and Teredo is unable to qualify

XBF Chris J

Hello eylülayaz,

Thank you for posting here on the Xbox forums. We understand that you are unable to go online in Forza Horizon 4 due to a teredo error. If you havent already, we recommend performing the steps on this support article: NAT
type on Windows 10 displays "Teredo is unable to qualify"

Please let us know if this helps by responding to this thread.

Can't connect to online games like forza because of teredo is unable to qualify issue..