I understood you Christian. I get an error when I try that (error 49 - invalid credentials) I have tried:
this is my Root cn=zentyal,dc=rapheal,dc=no-ip,dc=com and this works
my base is dc=rapheal,dc=no-ip,dc=com
my config should be cn=config,dc=rapheal,dc=no-ip,dc=com
in addition I tried cn=config,cn=zentyal,dc=rapheal,dc=no-ip,dc=com
Where is my mistake?