Dear @Saad Iftikhar,
Thank you for reaching out to the Microsoft 365 Q&A forum. We understand how disruptive it is to have your audio cut out during online classes. The issues you are describing the frequent disconnections and the "mystery" audio quality are common behaviors related to how Bluetooth handles Hands-Free vs. Stereo profiles during active calls.
To help me narrow down the cause, could you please provide the following details?
- Which specific model of Bluetooth headphones are you using?
- Have you noticed if the issue occurs in any other applications or only with MS Teams?
- What operating system and version are you using on your laptop?
In the meantime, please try the following official troubleshooting options which usually resolve issues with basic issues:
Option 1: Fix the "Mystery" audio (Stereo vs. Hands-Free)
Bluetooth headphones have two modes:
- Stereo (A2DP): High quality, used for music/games, but the microphone is off.
- Hands-Free (HFP/HSP): Lower quality, used for calls (Teams/Zoom) so the microphone and speakers can work simultaneously.
Teams automatically switches to "Hands-Free" to enable your mic. If you try to force "Stereo" while the mic is active, the audio will cut out because Bluetooth bandwidth cannot support high-quality stereo and a microphone at the same time.
Option 2: Stop the constant disconnecting
The "Disconnected/Connected" loop often happens when Teams and Windows fight over which audio device is the "Default."
Step A: Set a Single Default Device
- Go to Control Panel > Sound.
- Under the Playback tab, right-click your headphones (Hands-Free/AG Audio) and select Set as Default Communication Device.
- Under the Recording tab, do the same for your headphone's microphone.

Step B: Disable exclusive mode
- In the same Sound menu, right-click your headphones > Properties > Advanced.
- Uncheck "Allow applications to take exclusive control of this device." This prevents Teams from "crashing" the driver when YouTube or other apps try to play sound.

Option 3: Adjust Teams internal settings
- In MS Teams, click the three dots next to your profile picture > Settings > Devices.
- Ensure Speaker and Microphone are both set to the "Hands-Free" version of your headphones.
- Turn Noise Suppression to "Low" or "Off" to reduce the processing load on your headset.

Option 4: Reconnect your device
Remove your Bluetooth device and pair it again:
- Go to Settings > Bluetooth & devices
- Remove your speaker
- Turn Bluetooth off and back on again
- Re-pair your speaker
When you are in a Teams call, your headphones "lock" into the Hands-Free mode. Because the hardware is busy with the call, any other audio (like YouTube) must also use that same Hands-Free channel to be heard. You cannot hear high-quality Stereo music while your microphone is active in Teams.
If you use a separate microphone (like the one built into your laptop) instead of the headphone's mic, your headphones will stay in high-quality Stereo mode even during classes.
For official guidance, you may refer to the
Known issues when you use Teams certified peripherals - Microsoft Teams | Microsoft Learn
Certified Native Bluetooth Devices - Microsoft Teams | Microsoft Learn
Please note that as a forum moderator, I don’t have access to backend tools or internal systems to investigate further, and certain settings or configurations are managed exclusively by your organization’s administrators, so I’m unable to check or make changes on that side. That said, I truly hope these suggestions help you move forward.
Please let me know if you have any further questions or if the problem persists after trying these solutions. Thank you for your patience and cooperation.
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