I am still in the process of adding a second DC to a mapped domain.
I am stuck at a point where the ndsdcinit command is executed.

It gives the following output:

ldap_sasl_interactive_bind_s: Can't contact LDAP server (-1)
make: *** [nds_replica_refresh_nldap] Error 1

Now i checked the log files, but they give me basically the same info.
Now i found out that it has something to do with a root certificate perhaps?

What would be the next troubleshooting step?