Thread:Extension talk:LDAP Authentication/Another required groups issue

I have followed the instructions carefully and searched through available threads thoroughly. I wasn't able to resolve my issue.

When I do not require a group, any user in the domain can authenticate successfully. However, when I require a specific group, the user is given an invalid password message.

Notes:
 * I've tried with and without a proxied search
 * I've used both DOMAIN\\USER-NAME and USER-NAME@DOMAIN
 * "_Coporate" is spelled incorrectly. I know. I've known for 8 years.. ever since I started working here. :|

CONFIG:

LOG: