Hi,
you are talking about the CMC AI, right?
In that case you might have installed the wrong drivers and software.
Please install Tools for CMC 1.1.3 (Windows 10 - 64 bit or 32 bit version depending on your OS) and make sure that you also update the firmware of the CMC AI (important). You find everything here:
Afterwards it’s just Plug n Play.
You can enable the background lights here:
Studio/SteinbergCMCSeries >LED Dimmer
If you want to customize F1 to F4 you can do it here:
Studio/Studio Setup/Steinberg CMC-AI
Hope that helps!