Hi there , i have the same problem with Studio1824c ...studio one doesn't reconize the interface , but someone wrote an asnwer here on studio one in another forum , it seems you have to re-instal universal control , first you delete the old version of universail control , and then you re-instal it compleetly , that did the trick...also : use just 1 interface , if you use more then 1 interface on the same usb port , it could give problems...