Some keys require a one-time online "handshake" to activate the hardware ID of your PC. Conclusion

Are you setting up a installation or connecting to a corporate license server ? FAQ KUKA.SIM 4.X Licensing

A common pain point is moving KUKA.Sim to a new computer. Since product keys are "bound" to a specific machine upon activation, you must deactivate the license on the old PC first: FILE > Info > License Deactivate

: Registered users can manage all personal and company software licenses through the my.KUKA portal . Once logged in, navigate to Asset Management > Software & Licenses > My Licenses to view your active product keys. KUKA Marketplace : New licenses for the latest versions of can be purchased directly from the KUKA Marketplace Free Trial Keys : KUKA often provides a 14-day demo version