Problem LDAP : Login if user is member of a group

Hi,

I have a problem, I don't arrive to config login with LDAP.

CONEX_LDAP_SERVEUR : domain.org

CONEX_ROOT_DN : CN=Bind_OCS,OU=Account_Service,DC=ciril,DC,lan

CONEX_ROOT_PW : password_bind_ocs

CONEX_LDAP_PORT : 389

CONEX_DN_BASE_LDAP : DC=domain,DC=lan

CONEX_LOGIN_FIELD : mailNickname

CONEX_LDAP_PROTOCOL_VERSION : 3

CONEX_LDAP_CHECK_FIELD1_NAME : memberOf

CONEX_LDAP_CHECK_FIELD1_VALUE : ocs_groupe

CONEX_LDAP_CHECK_FIELD1_ROLE : super admin

....
.... (default)

I just try to login users if member of groupe ocs_group.

NB : Sorry for my poor english

Please help me

Regard