If your server is air-gapped, select Offline Activation to generate a request file. Upload this file on a connected device at and upload the resulting response file back to the server.
sudo systemctl restart coldfusion
: Ensure the server can reach Adobe's activation endpoints if it's a newer version requiring online activation . Conversely, if you have a cluster of servers, internal firewall settings might be blocking or misrouting the compliance broadcasts . If your server is air-gapped, select Offline Activation
: If you migrated to a new server, ensure the ColdFusion service on the old server is fully stopped or uninstalled to prevent it from broadcasting the same serial number . Troubleshooting Steps
: If you migrated to a new server, you must uninstall ColdFusion from the old machine or change its serial to a "Developer Edition" key to release the license. Conversely, if you have a cluster of servers,
"Same serial number found on another ColdFusion server. The server may be out of compliance. Fixed."
web interface. It will prompt you to enter a valid, unique serial number for that specific environment [1, 2]. Pro-Tip for DevOps If you are using ColdFusion Containers or automated deployments, use the installer.properties file or environment variables ( COLDFUSION_SERIAL "Same serial number found on another ColdFusion server
The "same serial number found on another server" error is Adobe’s mechanism to enforce license compliance. While inconvenient, it protects both you (from unknowingly violating terms) and Adobe’s licensing model. By following the deactivation and cache-reset steps above, you can quickly restore normal operation and keep your ColdFusion environment compliant.
Newly merged networks or VLAN updates suddenly allowed two isolated servers to "see" each other's UDP broadcasts.
: ColdFusion environments on the same local subnet polling each other via internal multicast broadcast packets, exposing duplicated installations. How to Fix the Error