My keyboard won't interface with Kontakt 5 (as stand-alone or plug-in). I get an error that says "Unknown USB Device (Device Descriptor Request Failed)." Is there a fix for this? The firmware is up-to-date and so are the drivers. I am using Windows 10 Pro (64-bit). I have restarted my computer and switched USB ports, but it still doesn't work! Any ideas how to fix this?