Summary: A large number of Xbox users reported they are unable to live chat with their friends online, join or host multiplayer games and see the error message Teredo is Unable to Qualify. In this tutorial, find out why the error occurs and how to fix it on Xbox One?
Teredo is a useful networking protocol that allows safe and secure connections between clients and servers.
Several conditions cause the protocol to behave negatively with Xbox One and flashing messages “Teredo is Unable to Qualify.”