Mountaineer WinUsb driver

I upgraded my Mountaineer Eth board to firmware 4.2 QFE2 and strictly followed the instructions on upgrading the USB driver to the WinUsb version as documented (see

I just want to add that the USB driver upgrade process should be done for each USB port where the Mountainer Eth board is connected to.

I found that after upgrading the USB driver and verifying that the driver details correctly show “Service=WinUsb”, a bluescreen happened again when pressing the RESET button. In my understanding this shouldn’t happen with the WinUsb driver (user mode). I found that I plugged the board into a different USB port. The driver details showed “Service=PortUsb” for this port. I had to change the driver manually to “WinUsb” following the documentation.