i get this error in iManager when i try to add users to my samba-server. Also the same message when i will see the security tab in iManager.

Unable to create a LDAP connection using SSL to {0}.
Creating secure SSL LDAP context failed:
simple bind failed: xxx.xxx.xxx.xxx:636 (xxx is master-server)

Servers are Oes2sp2 64bit.
What can i do? SSL certs are all valid.