Just bought X-Rite i1Display Pro to hardware calibrate my UP2516D monitor.

Installed DUCCS version 1.6.6.

i1Display Pro rev b 02.

DUCCS doesn't recognize the i1Display Pro?

DisplayCal does.

Tried different USB ports (2.0 and 3.0 as well) directly from monitor hub (I'm using an USB upstream cable coming from an old U2412M) and cabinet as well.

Under Device Manager, the i1Display Pro is recognized as Argyll Eye One 

After 1.6.6 DUCCS installation, Windows became really slow, some freezes and really slow reboots.

Up to date Windows 10.

Nvidia Quadro K600 with up to date drivers.

i2500