Unable to get Autologon working

I'm unable to get the remote logon helper working, the gateway is up and reachable however even after accepting the prompt about the cert my browsers still open and close tabs. We have our own CA so I want to create a cert however I cant find out how for the auto logon gateway. The instructions (below) appear as though there is meant to be a hyperlink where it states 'refer to this section of our site' but there isn't

'Important Note: When Password Manager Pro is installed, it generates a self-signed SSL certificate for the instance which is also used by the Auto Logon Gateway to encrypt the traffic. It is recommended that you apply a CA signed certificate to the Password Manager Pro instance before opening it out for end users. In case of a self-signed certificate, connecting to the gateway is not possible unless users explicitly mention the gateway port in the URL, accept the warning and install the self-signed certificate. (For steps to generate unique SSL certificate, refer to this section of our site).'