SAGE X3 - Outlook Plugin (Can't connect)

SOLVED

Hi,

Normally I'm able to configure the Sage X3 Outlook without any problems, but in one specific client I'm getting an error while testing the connection.

After I insert all the configuration, I'm getting the error "Connection forcibly closed by remote host".

It works in some of the computers in the network, but it doesn't work in most of them.

It seems like a network problem to me, but I'm almost sure all the computers have the same network permissions.

Here is the print screen:

Do you guys have any suggestions to debug this problem?

Best Regards