Hi,
I have a problem with my D54250WYK in combination with a ATEN KVM switch (CS1644). The keyboard is not working at all (mouse works correctly).
When I connect the KVM switch windows tell me that a USB device is not recognized. When I connect the keyboard directly to the NUC it works. All other PC's connected to the KVM switch art working correctly.
I already updated the BIOS and there are no new drivers for the chipset or USB.
I run Windows 8.1 on the NUC.
Regards
Andreas Ruge