I tried applying the steps from http://www.blackantelope.com/blog/drupal-7-ldap-tutorial
to my LDAP setup but i haven't been able to get my LDAP to bind(i did manage to get the sample LDAP Server to bind and even managed to bind to my LDAP using Apache directory).

When I try the steps for this in my installation i get a 504 time out error message. I'm certain the problem is in what i entered in DN for non-anonymous search doesn't look like anything in black antelope site but it works for apache directory.

LDAP 7.x-2.0 beta 12