Best for: Restoring from a backup or migrating a license to a new PC without re-activation.
Before starting the license activation process, ensure you have the following: chromeleon license activation
Chromeleon license activation is the process of validating your software installation with Thermo Fisher Scientific to enable full functionality beyond the initial . Starting with Chromeleon 7.3 , the system transitioned from hardware-based USB dongles to a digital, key-code-based system for easier management. Key Activation Methods Best for: Restoring from a backup or migrating
| Issue | Likely Cause | Solution | |-------|--------------|----------| | | Typo or key for a different product version | Copy-paste directly from the email. Check version compatibility (7.2 vs 7.3). | | “Activation limit exceeded” | Key already used on another PC | Deactivate on the old PC via License Manager, or contact Thermo support for a reset. | | Offline activation fails | Response file mismatch | Ensure the request and response files have matching file names and are from the same License Manager session. | | Floating license not found | Firewall blocking port 27000-27009 | Open TCP ports on the license server and client. Run lmutil diagnostics. | Key Activation Methods | Issue | Likely Cause
Activating your Chromeleon license ensures you can continue using the software beyond its standard . Depending on your setup and internet connectivity, you can choose between a quick online activation or a manual process for offline systems. Quick Guide to Chromeleon License Activation 1. Access the License Manager
When retiring an instrument or moving to a new server, you must the license. Failure to do so "burns" the license.