Enable verbose logging for NetHASP:
As a last resort, the license pointers in the Windows Registry may be corrupted. mastercam 2021 license not found
Encountering a "License Not Found" or "No Valid License Found" error when launching Mastercam 2021 is a common issue. It usually indicates that the software cannot communicate with the security device (Hasp/Sim) or the license server. Enable verbose logging for NetHASP: As a last
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Plug the key directly into the computer’s motherboard port. 2. Verify the CodeMeter Runtime Mastercam 2021 relies on CodeMeter to manage licensing. Open CodeMeter Control Center: Find this in your Windows Taskbar or Start Menu. Check Status: Ensure the "CodeMeter Service" is running. Restart the Service:
Never uninstall Mastercam 2021 completely as a first step. Uninstalling will not fix a license driver issue, but it will lose your customized posts, tool libraries, and config files. Start with the drivers, then the services, then the registry.