root@addc-01:/tmp# samba-tool drs replicate addc-02 addc-01 dc=example,dc=net
ERROR(<class samba.drs_utils.drsException'>): DsReplicaSync failed - drsException: DsReplicaSync failed (58, 'WERR_BAD_NET_RESP')
   File "/usr/lib/python2.7/dist-packages/ samba/netcmd/drs.py", line 389, in run drs_utils.sendDsReplicaSync(server_bind, server_bind_handle, source_dsa_guid, NC, req_options)
   File "/usr/lib/python2.7/dist-packages/samba/drs_utils.py", line 87, in sendDsReplicaSync
      raise drsException("DsReplicaSync failed %s" % estr)