I can't undestand this error: [my.host.name] ldap_simple_bind: Can't contact LDAP server The LDAP is fully reachable, and I do browse the directory with any other clent. My ldap url is all right, and the hostname resolvable. I get the same error when I enter the IP adress, anyway. And even at full debug level, I can't have more info. What/where should I investigate ? Thank you.