Black USB licenses are hardware-based and are considered legacy perpetual licenses. Many active fixed licenses still use these keys.
4. Fixing "License Is Clone" or Hardware Modification Errors
This comprehensive guide explains exactly what a "fixed" Zemax OpticStudio license is, how it compares to other licensing models, the practical steps to install and activate it, and the critical strategies you need to manage it effectively for long-term success. zemax opticstudio license fixed
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If you are still experiencing issues after trying these steps, you may need to submit a ticket to the Ansys Optics Support portal for further assistance. Black USB licenses are hardware-based and are considered
If the physical red/black/green USB key is lost or stolen, Ansys generally treats this as a lost asset. It is highly recommended to transfer legacy keys to softkeys if possible for easier management. Can I upgrade an old fixed license to a subscription?
Fixed licenses can be transferred between machines, but it requires a careful, two-step process to avoid locking the license. Fixing "License Is Clone" or Hardware Modification Errors
Use the License Manager on the new machine to "Activate" the license, using the same license number.
Understanding the difference helps prevent issues where a "fixed" license is mistaken for a "network" license. Fixed (Softkey/USB) Network (Shared) Locked to one machine Shared over a network server Portability Hard to move (must transfer) Easy (can be used on any network-connected PC) Stability Generally higher Dependent on server connection Best For Dedicated Designers Engineering Teams
If OpticStudio fails to detect a local Ansys-based license, follow these steps 1.2.4 : Open . Navigate to License File Management -> Import License .