intel ax211 bluetooth parrin issues 24.10.0.4 driver

[Heatkiller]

Hi I have a laptop with an Intel AX211 Wifi 6E and BT 5.3

My problem is that my Mouse Crosari M75 Air has terrible problems with pairing.

The only way I can get it to work is either remember to turn on the mouse and set it to BT before I start Windows.

If I turn off my BT mouse after I log in, it would not pair with the computer again without logging off or restarting the computer.

Now I have bought an external BT dongle and here I can do whatever I want I turn off the mouse and turn it on again and it pairs with out problems.

I have a new installer Win11 25h2 and the latest Intel BT driver 24.10.0.4.

I have found out what is happening.
The Intel driver starts btserv (Bluetooth service) at Windows start and not after login.

It locks the mouse so that it can only register at the start of Windows or when you log out of Windows and back in again.

So to solve this I have made a powershell scrip I run at logon.

Stop-Service -Name "bthserv" -Force
Start-Service -Name "bthserv"

Step-by-Step Guide:

Save your script: Ensure your script is saved as a .ps1 file (e.g., C:\Scripts\restart_bt.ps1).

Open Task Scheduler: Press the Windows key, type Task Scheduler, and press Enter.

Create a New Task:

Click Create Task... in the Actions pane on the right.

Name: Give it a name, e.g., "Restart Bluetooth at Logon".

Security options: Check the box Run with highest privileges. This ensures the script can bypass the Admin prompt.

Set the Trigger (When should it run?):

Go to the Trigger's tab.

Click New...

In the "Begin the task" dropdown, select To log on. Click OK.

Set the Action (What should it do?):

Go to the Action's loss.

Click New...

In the Program/script box, type: powershell.exe

In the Add arguments (optional) box, paste the following:

-ExecutionPolicy Bypass -WindowStyle Hidden -File "C:\Scripts\restart_bt.ps1"

(Note: Replace the path with your actual file path. -WindowStyle Hidden ensures the script runs invisibly in the background).

Power Settings (For Laptops):

Go to the Conditions loss.

Uncheck Start the task only if the computer is on AC power. This ensures that it runs while you are on battery as well.

Finish: Click OK. Next time you log in, Windows will automatically run your script as an administrator.

Now I can turn my mouse on and off as I please and it pairs immediately.

I hope Intel fixes this Windows start up error.

And i hope this fix helps others.

[VonM_Intel]

Hi Heatkiller,

Thank you for posting in our Community. I understand that with the Intel® AX211 Bluetooth, the mouse only reconnects reliably when it is powered on before Windows starts or after logging out, while the issue does not occur when using an external Bluetooth dongle. Your observation regarding the Bluetooth service (bthserv) starting at Windows boot rather than after login is noted and provides valuable context.

As a next step, I’d like to ask a few quick questions to help us narrow this down further:

• Does the issue occur with other Bluetooth devices (for example, headphones or keyboards), or only with the Corsair M75 Air mouse?

• Have you noticed whether Fast Startup is enabled in Windows power settings?
• Is this behavior consistent across every reboot, or does it occur intermittently?

In parallel, I recommend trying a clean installation of the Intel® Bluetooth driver, as this can help rule out any residual files or configuration conflicts, even if the latest driver version is already installed. You can follow the steps outlined in this Intel article: How to Perform a Clean Installation of Bluetooth Drivers

After completing the clean installation, please test the pairing behavior again without the PowerShell workaround and let me know if there is any change.

Have a nice day!

Best regards,

Von M.
Intel Customer Support Technician

[VonM_Intel]

Hi Heatkiller,

Have you had a chance to review my previous response? Please let us know if you require any further assistance. I'm here to help.

Have a nice day!

Best regards,

Von M.
Intel Customer Support Technician

[VonM_Intel]

Hi Heatkiller,

I have not heard back from you, so I will close this inquiry now. If you need further assistance, please submit a new question as this thread will no longer be monitored.

Have a nice day!

Best regards,

Von M.
Intel Customer Support Technician