Leftover files from a previous trial or an old "cracked" version are interfering with a new, legal installation.

Non-genuine copies are notorious for crashing during complex toolpath generations, leading to lost work.

Your computer cannot reach the Mastercam license server to verify your seat. The Risks of Using Non-Genuine Mastercam

If you believe this message is an error, contact your . They can run a diagnostic tool on your SIM/Hasp to verify the maintenance agreement and license status. They can often provide a "clean-up" utility that removes the flags causing the error. 4. Switch to the Mastercam Learning Edition

Ensure your are up to date. If the driver is outdated, the software may fail to communicate with your USB dongle, leading Mastercam to assume the software is non-genuine. You can download the latest drivers directly from the Thales (formerly SafeNet) website. 3. Contact Your Local Reseller

If you recently purchased a legal seat but previously had a "home learning" or unofficial version on the machine, you must scrub the registry. Uninstall Mastercam completely. Search for "regedit" in Windows.