Problems with ldap_start_tls ()

Hi, I'm trying to get secure authentication with Novell EDirectory running. PHP Version is 4.3.1 compiled with ldap and openssl. I copied the Novell root-certificate into the OpenSSL Certificate folder (/etc/ssl/certs) and made sure that the ssl handshake is fine: # openssl s_client -CApath /etc/ssl/certs -connect servername:636 returns Verify return code: 0 (ok) BTW: The files in /etc/ssl/certs are world readable. After that I configured the openldap-client (ldap.conf) adding: TLS_CACERTDIR /etc/ssl/certs to make sure, the ldap client is able to find the trusted certificates and after that # ldapsearch -x -H 'ldaps://servername/' -b 'o=baseDN' -D 'cn=myDN' -W returns some data about me as a directory object :-) The above steps took me about half a day :-( and I have no idea why this is not working: <?php $ldap = ldap_connect ("ldaps://servername/"); ldap_set_option ($ldap, LDAP_OPT_PROTOCOL_VERSION, 3); ldap_start_tls ($ldap); echo "<br />" . ldap_errno ($ldap) . ": " . ldap_error ($ldap); $bind = ldap_bind ($ldap, $myDN, $myPwd); ldap_close ($ldap); ?> This is the output from the code above: Warning: ldap_start_tls(): Unable to start TLS: Can't contact LDAP server... 81: Can't contact LDAP server Any help or ideas about what might be wrong are really appreciated. Flo