Error: (Curl Error) couldn't connect to host

[darkkean]

Hello,

 

I would like to ask some help regarding my problem when creating accounts using WHMCS to my server's WHM via remote setup key.

 

Everytime I click a button to activate a package, WHMCS loads as if it never stops.. and when it stopped, it returns the error: "(Curl Error) couldn't connect to host - code: 7".

 

I checked the documentation and found out

 

Server Command Error - Curl Error - Couldn't connect to host (7)

 

This response means you have a firewall blocking the connection. The port being used depends on what module you are using but for cPanel it would be 2086/2087, Plesk 8443, DirectAdmin 2222, etc...

 

Though, I am not sure if I am blocking the 2086/2087 ports, I don't have idea where to unblock it. I checked my WHM (with root user), I have no firewall options there, I even un-installed my CSF weeks ago already.

 

By the way, my WHMCS is installed on my Server 1, and I am trying to create a cPanel account on Server 2 via remote access key. When I try to create an account on Server 1, it is successful, while in Server 2, it returns the code 7 error.

 

I am using ClienExec too. and when I try to do this via CE, there's no problem occur, and accounts are set-upped as it is.

 

I am very new with WHMCS, so please help me and point me my errors. Thank you very much!