Teams crashing the sound system

Question

Got a new laptop running WIN11.

For Teams meetings I'm using a BT headset which was working failure free 6 years under WIN10 with previous laptop.

I can connect the headset over BT, I see the earpieces and microphone on devices menu and sound menu. Everything is configured.

When a Teams meeting or Skype call is started, both microphones (laptop internal and headset external) disappear on System, message 'no voice input device found'. Even headset earpieces are no more there. Internal microphone and speakers are coming back after rebooting Laptop.

Teams re-installed (latest New Teams version), audio driver re-installed.

Microsoft Agent suggested testing Teams on Web and test with another user profile.

During both tests same issue happens- no change. Sound system crashes totally. All speakers and microphones disappear on Win settings menu.

Looks like the audio drivers get restarted, after some seconds just the internal speakers appear again on settings menu. But not functioning.

When playing a Youtube video, no sound will come out of internal speaker while the sound bar on Sound menu shows sound level changing according to the video.

On Bluetooth and devices menu I see my headset still as connected.

Would you have recommendations for solution?

Answer

@MORGENSTERN Matthias

It sounds like quite a frustrating issue! Here are a few steps you might try to resolve the problem with your Bluetooth headset and Windows 11:

1. Check Bluetooth Driver Updates:

Ensure that your Bluetooth drivers are up to date.

Open Device Manager (you can search for it in the Start menu).
Find the Bluetooth category, expand it, and right-click on your Bluetooth adapter.
Select Update driver and choose Search automatically for updated driver software.

2. Check Audio Driver Updates:

Similarly, ensure your audio drivers are up to date.

In Device Manager, find the Sound, video and game controllers category.
Right-click on your audio device and select Update driver.

3. Roll Back Drivers:

If your drivers are already updated, you might consider rolling them back to a previous version.

In Device Manager, right-click on your Bluetooth or audio device and select Properties.
Go to the Driver tab and choose Roll Back Driver if the option is available.

4. Run the Bluetooth and Audio Troubleshooters:

Open Settings > System > Troubleshoot > Other troubleshooters.
Run both the Bluetooth and Playing Audio troubleshooters to see if they can identify and fix issues.

5. Disable Hands-Free Telephony:

Sometimes the hands-free telephony service can cause issues with Bluetooth headsets.

Go to Settings > Devices > Bluetooth & other devices.
Click on your headset and select Device properties.
Disable the Hands-free Telephony option and see if that resolves the problem.

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Answer

Thanks for providing tests:

Point 1+2: 'Best driver installed'. I did some days ago, even this result was displayed on former tests

Point 3: not available

Point 4: Audio troubleshooting tried to make a re-configuration, but finally said 'sorry, couldn't solve the problem', and BT trouble shooting tried to start a WIN update which couldn't start for any reason. I have a safety uptate waiting ( KB5048667) which is not starting.

Point 5: Microphone is now there, but no speakers at all ( no internal+headphone earpieces)

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Teams crashing the sound system

2 answers

1. Check Bluetooth Driver Updates:

2. Check Audio Driver Updates:

3. Roll Back Drivers:

4. Run the Bluetooth and Audio Troubleshooters:

5. Disable Hands-Free Telephony:

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