Connection issue with Wii balance board

Hi guys,
I did some tests with the Wii balance board and the Wiimote node. If I connect the board to my PC with bluetooth (Win 10) and open the Wiimote node everything works fine but when I restart the PC the board is disconnected from my PC bluetooth even if the device is in the list of windows associated device.

In order to run again the device I have to remove it from the bluetooth list and re-add the association.

Any expertise or suggestion in order to have the Wii balance board always connected to my PC bluetooth?