I facing issue where the system extension i try to install have message:
no related kext found for sysex 'com.apple.usbsoundriver' com.apple.usbsoundriver:extension failed to validate! uninstalling... uninstalling invalid extension com.apple.usbsoundriver
Is internet access is required for system extension validation? I install the driver without internet access.
This work in some others machine, only fresh reformated Mac machine without internet connection have this issue. Why is this so?