nRF SDK 3.0.1, bluetooth peripheral_hid_mouse example fails in connecting windows10 laptop

[bluemountain]

Development Environment

    - nRF52840DK_nRF52840

    - vscode on Windows10 laptop

    - source code :   C:\ncs\v3.0.1\nrf\samples\bluetooth\peripheral_hids_mouse\

    - vscode + nRF connect

    - no modification on source code and project files

    - compile with default configuration

        - SDK, toolchain  v3.0.1

        - board target   nrf52840dk/nrf52840

        - (no additional settings)

                 Build system default   (which is the default setting)

    - Compile and flash run without error

With Android phone

- Everything is okay

With Windows10 laptop

- Scanning the device runs okay

- But, when I tried to pair, the device print the log as below capture and the pairing failed. 

Does anyone have idea what is wrong in my test ?

Regards,

Kenny

[bluemountain]

I search the similar issue in the nordic devzone and found one. 

https://devzone.nordicsemi.com/f/nordic-q-a/104258/security-failed-level-1-err-9-connecting-error-with-bonded-device

CONFIG_BT_PHY_UPDATE=n

This option works like a magic. With this option, I can finally connect to my HP windowsPC. 

Bit more information for your reference

I think  README.rst in nordic example project should have the explanation on this option. 

Great thanks to devzone.nordicsemi.com

Regards,

Blue,

[Hieu]

Hi Blue,

If CONFIG_BT_PHY_UPDATE=n helps, then it could be a problem with the Windows machine's Bluetooth chip. This is the reason I suggested testing with a Windows 10 machine of different make. 

Even then, we need a sniffer trace before we can conclude anything. 

As it is, I am afraid we don't have enough ground to make any changes. If you wish to investigate this further, please record a sniffer trace of the issue.

Regards,

Hieu