Remote Authorization via Active Directory

So I've followed this article to a T, with the exception that instead of using a user template I've defined a specific bind. I know the ldap request is successful because if I set the External Users role to Guest under the Users:Authentication tab, I get guest access as desired. However, I cannot seem to make the remote role groups work. To give you my scenario - I need a group for ReadOnly (guest role) and a group for ASM Administrators for our IS Security Team. Any help is greatly appreciated.