If you suspect that your cPanel and WHM license is not functioning:
Run either of the following commands from your server’s command line interface:
curl -L http://cpanel.net/showip.cgi
lynx -dump http://cpanel.net/showip.cgi
Next, visit http://verify.cpanel.net
Enter the IP address you obtained in step 1.
Our website will display the status of your license.
If your server’s IP (from step 1) does not match the IP address on your license, contact cPanel Customer Service for further assistance.
If your IP address matches the license, and you are still experiencing problems, run the following script to verify your license:
Once the script runs, you should be returned promptly to the command line with no messages if it works properly. If it takes longer than a few seconds, you may be experiencing connectivity issues.
f cpkeyclt fails, ensure that you are able to resolve our licensing servers. To test that you can resolve our servers. use the following command:
You may also need to ensure that the time and date of the server are not set too far into the future or past.