Nothing is more frustrating for gamers than being unable to log into their Xbox multiplayer servers. If you’re getting a “Teredo is unable to qualify” message on your console, here’s what it means and how to fix it.
HOW TO FIX TEREDO CAN'T QUALIFY | CAN'T GO ONLINE | 2022 |
Teredo in this context is short for Teredo tunneling. Think of Teredo as a translator between different versions of the Internet Protocol (IP), specifically version 4 (IPv4) to version 6 (IPv6). The entire Internet is slowly being upgraded to version 6, but as a result, many people continue to use the outdated protocol. Teredo tunneling is used in situations where one endpoint of the tunnel is private, such as behind a router. That way, it can smoothly translate between the two protocols, allowing them to share data.
This error means that the Xbox was unable to secure a Teredo IP address. In other words, it is unable to determine where to send internet traffic.
Teredo tunneling is only used for in-game chat and online multiplayer features. Other online features, such as video streaming and using the online store, are generally unaffected, so you may not notice the error until you use these features.
