
Open your Mac's System Preferences and choose Users & Groups > Login Items.Make sure that the services NIHardwareAgent and NIHostIntegrationAgent are running on your computer.Windows only: The keyboard driver is not correctly installed.įollow these steps in order to solve the issue:.Mac only: A plug-in in the HAL folder prevents the keyboard from being recognized.The keyboard is not correctly connected.The MIDI input ports of the keyboard are turned off.

The services NIHardwareAgent and/or NIHostIntegrationAgent are not running.This issue can be caused by the following:

You cannot hear any sound when playing the keys of your KOMPLETE KONTROL S-Series keyboard and it is not available as a MIDI device in the KOMPLETE KONTROL Preferences.
