Uno Wifi Rev2 ATm32U4DFU

Hi, I have a brand new Uno Wifi Rev2 that will not connect via USB (Windows 10). In Device Manager, it shows under "Other devices" as "ATm32U4DFU", the Properties for which state that "The drivers for this device are not installed. (Code 28)". I installed the Atmel drivers via the Boards Manager in the IDE at the outset.

In addition, when it is plugged in, the power light is solid, but there is no pulsing of the L light.

Grateful for any help.

Mark

did you install the megaAVR boards package in IDE?

Yes, first thing I did.

I should also point out that nothing happens when I press the reset button on the board.

bump