[Samba] samba 4.2. Knowledge Consistency Checker failed

[Adriana Moga]

Hello,

I have joined samba 4.2 as a DC in a windows domain. The replication is
working between domain controllers and samba 4.2.
Only that I'm concerned about "samba-tool drs kcc" fails with an RPC
protocol error:

ERROR(runtime): DsExecuteKCC failed - (-1073610723, 'An RPC protocol error
occurred.')

I'm using the default config in smb.conf file:
# Global parameters
[global]
    workgroup = MYDOMAIN
    realm = MYDOMAIN.LOCAL
    netbios name = SAMBA4.2
    server role = active directory domain controller

[netlogon]
    path = /usr/local/samba/var/locks/sysvol/mydomain/scripts
    read only = No
[sysvol]
    path = /usr/local/samba/var/locks/sysvol
    read only = No


Thanks,