Thread:Extension talk:LDAP Authentication/LDAP Autentication (LdapAuthentication-MW1.18-r90286) on Mediawiki 1.18. AD2K8R2

Grettings I'm having a problem with this extension on my Wiki. I'm using LAMP (php 5.3.8 and MySQL 5.5.16) I have php_Ldap extension active and tried to configure the ldap extension as described here: http://www.mediawiki.org/wiki/Extension:LDAP_Authentication/Configuration#Configuration_for_AD_domains changing obviously the configuration for the domain and LDAP servers. but I always get a wrong password message when try to logon. Do I miss something? Thank you in advance