Mastercam 2021+ uses a newer licensing service that is sensitive to network discovery.
By performing a "clean sweep" of all Sentinel/HASP drivers and reinstalling the latest unified Sentinel LDK runtime, the virtual bus can be successfully reconstructed, allowing for backward compatibility with older keys and forward compatibility with Mastercam 2022. Mastercam X7-2022 Virtual Usb Bus Error
If you are using Mastercam X7, X8, or X9 on Windows 10/11, the old drivers are not signed. Mastercam 2021+ uses a newer licensing service that