Windows 10 Pro 64 bit, latest build.
Nektar LX88 wasn’t behaving as expected. It would work fine with Cubase 8.5.20 after a reboot, but when I switched it off, then back on, nothing!
If you’re having similar issues with USB equipment
Make sure that the USB Root Hubs do not have ‘allow the computer to turn off this device to save power’ under Power Management in Device Manager checked (see image).
Do this for all the root hubs. Re-start the computer.
Hope that may help someone,