This article covers the issue where Customers are unable to login to cPanel through the single sign-on in their Client Area.
When attempting to Login to cPanel from within the Client Area the following error message is produced:
- Action Failed: Unable to auto-login. Please contact support
There may be multiple reasons for this:
1. The login details in WHMCS Setup > Products and Services > Servers > Edit are incorrect.
- Insert correct login details and Test Connection
2. The outgoing port 2083 is blocked on your server firewall.
NOTE: Whenever the WHMCS password is changed the password in (1) above also needs to be changed.