Try these steps in order on Windows 11:
- Check the audio output device.
- Click the Sound icon on the taskbar.
- Make sure the correct Bluetooth device is selected as the audio output.
- Also go to Start > Settings > System > Sound and confirm the Bluetooth device is selected under Output.
- Run the Bluetooth troubleshooter.
- Open the Get Help app and run the automated Bluetooth troubleshooter.
- It can automatically diagnose and fix common Bluetooth audio problems.
- Adjust the Bluetooth audio format.
- Go to Start > Settings > Bluetooth & devices > Devices.
- Select the Bluetooth device, then select Advanced sound properties.
- Under Output settings, set Format to 2 channels,16 bit, 48000Hz (DVD Quality).
- This option appears only while the Bluetooth device is connected.
- Remove and pair the device again.
- Go to Start > Settings > Bluetooth & devices.
- Find the device and select More options (...) > Remove device.
- Select Add device and pair it again.
- Turn Bluetooth off and back on.
- Go to Start > Settings > Bluetooth & devices.
- Turn Bluetooth off, wait 10 seconds, then turn it back on.
- Try pairing again.
- Update the Bluetooth driver.
- Open Start > Device Manager.
- Expand Bluetooth.
- Right-click the Bluetooth adapter and select Update driver > Search automatically for updated driver software.
- Restart the PC if prompted.
- Check for Windows updates.
- Go to Start > Settings > Windows Update.
- Select Check for updates and install any available updates.
- Restart the PC.
- Select Start > Power > Restart.
- Check device compatibility.
- Confirm the Bluetooth audio device supports A2DP, which is used for higher-quality audio streaming.
Also verify the Bluetooth audio device is within range and connected, not just paired.