Configuring multiple domains

Hello,

I've been attempting to figure out how to configure the LDAP Integration module so that I can have users across multiple domains (I'll call them Domestic and International) login to my Drupal site. I have the Domestic domain setup and work beautifully - all of the users can enter their existing domain credentials and proceed to access site resources.

The problem I have is in setting up the International domain. I've got the correct IP address for the AD server in the International domain, and have the correct Base DN's configured. Anonymous connections to the LDAP server isn't allowed, so I've made sure I have a service account created and have input the correct DN location and password in the advanced config... And then when I hit test, the test test fails.

Has anyone out there had any success in configuring multiple domains with this module?