A Glitch in the (Teams) Matrix (troubleshooting a new Teams audio glitch)

​I recently ran into an issue during a Microsoft Teams meeting, and did some digging afterwards to troubleshoot. The problem was that I could not hear any sound through my wireless headset during the meeting, while using a custom audio configuration that had previously worked flawlessly (a Logitech USB webcam, Blue Snowball external microphone, and a SkullCandy Hesh 2 Bluetooth headset). 

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It seems that Microsoft has made some changes to both Teams and Windows that now prevent anyone from using both a Bluetooth headset and an external microphone during Teams meetings. Windows detects a Bluetooth headset with a built-in microphone as telephone device – which means that Teams will want to use it as an all-in-one device and will prevent you from hearing sound once you turn on your external microphone. Previously, you were able to prevent this by turning off the “telephony” service for your headset (under the device properties) – but Microsoft has now removed the ability to access that tab and turn off that service in the latest builds of Windows 11.

I played around with my system, and determined that this issue does not impact other online meeting platforms such as Zoom, Google Meet, or Skype – just Teams.

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TLDR: If you encounter an issue with not being able to hear sound during a Teams meeting, it may be that you are trying to use a wireless headset and an external microphone at the same time – and you are no longer able to do that!