Chromeleon License File |verified| -

: If you plan to replace a motherboard or network card on a Chromeleon workstation, remember that the MAC address will change. You must request a license transfer from Thermo Fisher before decommissioning the old hardware.

What of Chromeleon are you running? (e.g., 7.2, 7.3) Are you setting up a standalone PC or a network server ? What specific error message are you encountering, if any?

To manage your license, open the via the Windows Start Menu.

The license server was offline for too long. Chromeleon allows a "disconnected grace period" (usually 7–30 days) for laptops or network outages. Once that expires, the software locks. Fix: Reconnect the client to the network where the License Server is available. Restart the FlexNet Licensing Service in Windows Services. chromeleon license file

If you need help with a specific part of this process, could you tell me:

Contact your Thermo Fisher Scientific account manager to obtain an updated, permanent license file. In emergencies, check if your system qualifies for an emergency temporary extension file. 4. "Maximum Number of Licenses Exceeded"

The is unplugged or the driver is outdated. The Chromeleon Domain Service has stopped running. : If you plan to replace a motherboard

Log into the Thermo License Portal and upload the deactivation proof. This credits the license back to your account pool.

Are you trying to or activate a new instrument for the first time?

Chromeleon 7 supports licensing on VMs; however, you will need a USB2LAN converter if using a physical dongle. The license server was offline for too long

If you purchased a new system, the license file is likely pre-loaded on the blue USB dongle.

| Symptom | Likely Cause | Resolution | |---------|--------------|-------------| | “No license available” despite free seats | Firewall blocking port 27000-27009 | Open TCP ports on server and client side. | | “License server machine is down or not responding” | Hostname not resolvable | Use static IP or ensure DNS correctly configured. Use IP address in client config. | | “Invalid license file (error -5)” | MAC address mismatch or file edited | Re-generate license file with correct MAC; never manually edit the .lic content. | | After hardware change, license fails | New NIC or VM clone changed MAC | Contact Thermo for rehosting (some licenses have move limitations). | | Evaluation license expired | Term license | Purchase permanent license or request extension. |

To view your current status, open the and navigate to the License Manager tab. Here, you can see your Activation ID and the hardware key (dongle) associated with the file. Physical Location