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Why does my WHMCS fail to validate?

Art. Nr: 100  |  Rating: 4.1/5 from 304 votes  |  Last Updated: Sat, May 19, 2012

Having been designed from the ground up with simplicity in mind, WHMCS makes things as easy as possible. Nevertheless, WHMCS requires certain features to be installed to make it function correctly. One of those is the ability to validate licensing via CURL. For more information, please see the details outlined below.

Information collected by WHMCS:

  • WHMCS Installation Directory
  • WHMCS Domain Name
  • WHMCS IPv4/IPv6 IP addressing

Upon having collected all this information, WHMCS will go ahead and sync this information with the licensing server. If it’s unable to reach the licensing server for up to seven (7) days, you may receive an error such as the one below:

WHMCS has not been able to verify your license for the past 7 days or more. Before you can access your WHMCS Admin Area again, your license needs to be verified. Make sure you do not have a firewall blocking the connection to our server.

Should you get the aforementioned error, please take a look at the suggested ways of resolving this error below. Please note that both items are necessary for WHMCS to function correctly.

  • CURL - CURL is an extremely important part of WHMCS and is needed for a majority of the operations performed within WHMCS, such as server connections etc.
  • DNS - DNS is a vital part of WHMCS in order to be able to resolve hostnames of servers, domain name lookups, and licensing. Please make sure that your WHMCS installation is able to perform lookups.

Should you have any further questions pertaining to your WHMCS license, please feel free to get in contact with our web hosting support team for additional assistance.

We have a problem with cURL and WHMCS connect to domain registrar. Now we have fixed that but this might be a reason for WHMCS license error.

Posted by Thommy - Mon, Jul 23rd, 2012

Needs to be reissued. Go to support link on licensecube site to reissue your WHMCS license.

Posted by Anna - Tue, Jul 3rd, 2012

Most of the time WHMCS is doing this when you move the web hosting or change the sub-domain it resides.

Posted by Teknologico - Sat, Jun 30th, 2012

Every change of web hosting needs WHMCS to be reissued Pretty easy and standard procedure for re-validation the WHMCS license though.

Posted by SarahE. - Tue, Jun 26th, 2012

WHMCS has their web site and licensing system DDoSed lately may be that can be a reason too for the WHMCS license not to validate.

Posted by Patrick - Tue, Jun 19th, 2012

We have had the same problem with we have changed the web hosting and the cpanel username has been changed but we got this fixed with the help of LicenseCube which is the best WHMCS licenses distributor so far.

Posted by Uma - Thu, Jun 7th, 2012

You need to reissue the WHMCS license if you change the installation folder. Pretty good security by WHMCS.

Posted by Thomas - Tue, Jun 5th, 2012

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