Windows 10: Bluetooth LE device removed from pair list on restart

Discus and support Bluetooth LE device removed from pair list on restart in Windows 10 Drivers and Hardware to solve the problem; If I pair a Bluetooth LE device with Windows 10, the device is no longer present in the pair device list once I restart. I looked into the Windows... Discussion in 'Windows 10 Drivers and Hardware' started by Ashik_D, Aug 5, 2021.

  1. Ashik_D Win User

    Bluetooth LE device removed from pair list on restart


    If I pair a Bluetooth LE device with Windows 10, the device is no longer present in the pair device list once I restart. I looked into the Windows registry HKLM\CurrentControlSet\Enum\BTHLE and found a key created for the device upon pairing and removed on restart. This problem only occurs with Windows Enterprise LTSC edition; on Windows 10 Pro, it's working without any problem.Device info: BLE device with Bluetooth version 4.0, Protection level: none, DevicePairingKinds: ConfirmOnlyProblematic OS info: Windows 10 Enterprise LTSC 2019 WindowsVersion 1809Workable OS info: Windows 10 Pro W

    :)
     
    Ashik_D, Aug 5, 2021
    #1

  2. Bug in windows bluetooth le GetGattServicesAsync method

    The problem description:
    Sometimes it is not possible to get some response from the method GetGattServicesAsync with the parameter BluetoothCacheMode.Cached or BluetoothCacheMode.Uncached. Only the windows restart helps to reconnect the le device and to get the services from the le device.

    We use Windows.Devices.Bluetooth.dll with .Net Framework 4.6.1 to build the class library.
    The Windows PC shall connect the Bluetooth le device.

    Steps for the problem reproducing:

    1. Discovery the devices with the determined service
    2. Call the method FromBluetoothAddressAsync with the Bluetooth address of LE device
    3. BluetoothLEDevice is found
    4. Pair the LE device with desktop:

    5. Check the connection status. If the status connected, call the method GetGattServicesAsync(BluetoothCacheMode.Cached)
    6. Sometimes is not possible to get the response from GetGattServicesAsync. After 30 seconds we cancel the task, dispone BluetoothLEDevice, unpair and try to reconnect le device. The reconnection is failed and only the Windows restart helps to establish the connection to the le device.

    PC:

    • Dell Precision 5530
    • Bluetooth adapter Qualcomm QCA6174A
    • Windows 10 Enterprise (1803)
    • Version 10.0.17134 Build 17134.590

    LE Device:

    • Bluetooth 4.2
     
    Yury Kalinin, Aug 5, 2021
    #2
  3. Unable to remove device from bluetooth list

    I am new to windows 10. I tried to pair a fitbit via bluetooth. Bluetooth detected the fitbit but when I tried to pair an error occurred. the instructions told me to remove device from bluetooth list, restart laptop and try again. However, when I follow
    instruction to remove device from the list (ie click n hold icon then select remove) there is no option to remove - only gives me option to pair, which just gives me same error message. Can anyone tell me how to remove device from bluetooth list pls?

    ***Post moved by the moderator to the appropriate forum category.***
     
    MargaretNeilson, Aug 5, 2021
    #3
  4. Bluetooth LE device removed from pair list on restart

    Can't remove paired bluetooth devices in Windows 10

    I made an account here just to thank you for this solution. I spent hours trying to remove a paired bluetooth controller from my machine from the bluetooth menu, device manager, even using third party programs. Every time I would go to pair the controller again the system would re-install the driver as soon as the controller went to pairing mode, but it wouldn't actually pair!

    Removing it this way made it instantly show up in my pairing list and it works perfectly. I was about to reinstall Windows I was so frustrated.

    Thank you!!!! You're my internet hero of the day.
     
    five5fifty5, Aug 5, 2021
    #4
Thema:

Bluetooth LE device removed from pair list on restart

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