This tutorial is designed to troubleshoot and diagnose issues with cPanel license errors. Find the IP address on a cPanel VPS or dedicated server with cPanel, which is giving a license issue.
If you come across this screen, while attempting to access your cPanel server over the web interface, you may have the incorrect server IP licensed.
To determine the correct IP for your cPanel license, SSH the server and run the following command as the root user:
curl -L http://cpanel.net/showip.cgi
Your server will return the IP address which is causing the license error.