When I try to use an instrument, Analog Dreams, for example, I get the following message:
Audio driver not connected-please check your audio settings.
The audio setting shows Real Tek as the audio program on my HP.
Do you use Kontakt in a standalone mode or in a DAW?
My Kontakt 7 Player is in Standalone mode on my HP Windows 11 computer.
Maybe you should go to the audio settings inside your Kontakt to experiment with different audio engines.
Let me know if it helped.