The Xbox One controller must be updated as well as the console itself for the stereo headset adapter to work, Microsoft has said.
The Xbox One stereo headset adapter is used to connect chat or stereo headsets, such as the official Xbox One stereo headset, to your controller. But it won't work unless you update the controller, and you can't do this unless you have the latest system update, which contains the newest controller software.
Here's what to do: plus in the stereo headset adaptor into the bottom of your controller, plug in a headset, then plug the big end of the included USB cable into the port on the side of the console. That should make instructions to install the update display on your screen. Follow them. Microsoft said the update can take up to three minutes, so put the kettle on.
Meanwhile, Microsoft has confirmed that it has tweaked the sensitivity of the Xbox One controller thumbsticks.
Last month it emerged that a fix would be added after Respawn Entertainment, developer of Titanfall, had requested it of Microsoft.
"It wasn't really where we felt it should be," Titanfall design lead Justin Hendry said. "It was a little overly twitchy with the current controls. Now it's fixed. We're happy with it."
The console's recent update increased the sensitivity of the outer boundaries of the thumbsticks on the Xbox One controller, a Microsoft spokesperson confirmed to Eurogamer. "The update will happen automatically when your controller syncs with your console."