Steinmetz, Robin wrote:
conn=1 op=0 do_extended: unsupported operation "1.3.6.1.4.1.1466.20037" conn=1 op=0 RESULT tag=120 err=2 text=unsupported extended operation
This is the StartTLS extended operation for enabling an encrypted channel in an existing LDAP connection.
It seems your OpenLDAP server installation is not build with SSL/TLS support or it's not enabled in your server's configuration.
Ciao, Michael.