Hello Community, after an upgrade from samba 4.6.7 to samba 4.7.0, now i have a replication issue on my second domain controller. When i type "samba-tool drs showrepl" all correctly synced, except the following: ==== INBOUND NEIGHBORS === DC=DomainDnsZones,DC=mydomain,DC=de Default-First-Site-Name\DC1 via RPC DSA object GUID: 2abe9f52-9cd5-43c8-9fc2-a67eba27f551 Last attempt @ Wed Oct 4 16:12:02 2017 CEST was successful 0 consecutive failure(s). Last success @ Wed Oct 4 16:12:02 2017 CEST DC=DomainDnsZones,DC=mydomain,DC=de Default-First-Site-Name\DC3 via RPC DSA object GUID: 0893c21b-9e09-4bdf-9a3a-b55304643222 Last attempt @ Wed Oct 4 16:12:06 2017 CEST was successful 0 consecutive failure(s). Last success @ Wed Oct 4 16:12:06 2017 CEST CN=Schema,CN=Configuration,DC=mydomain,DC=de Default-First-Site-Name\DC1 via RPC DSA object GUID: 2abe9f52-9cd5-43c8-9fc2-a67eba27f551 Last attempt @ Wed Oct 4 16:10:21 2017 CEST was successful 0 consecutive failure(s). Last success @ Wed Oct 4 16:10:21 2017 CEST CN=Schema,CN=Configuration,DC=mydomain,DC=de Default-First-Site-Name\DC3 via RPC DSA object GUID: 0893c21b-9e09-4bdf-9a3a-b55304643222 Last attempt @ Wed Oct 4 16:10:21 2017 CEST was successful 0 consecutive failure(s). Last success @ Wed Oct 4 16:10:21 2017 CEST DC=mydomain,DC=de Default-First-Site-Name\DC1 via RPC DSA object GUID: 2abe9f52-9cd5-43c8-9fc2-a67eba27f551 Last attempt @ Wed Oct 4 16:12:34 2017 CEST failed, result 58 (WERR_BAD_NET_RESP) 897 consecutive failure(s). Last success @ Wed Oct 4 15:38:43 2017 CEST DC=mydomain,DC=de Default-First-Site-Name\DC3 via RPC DSA object GUID: 0893c21b-9e09-4bdf-9a3a-b55304643222 Last attempt @ Wed Oct 4 16:12:39 2017 CEST failed, result 58 (WERR_BAD_NET_RESP) 413 consecutive failure(s). Last success @ Wed Oct 4 15:32:31 2017 CEST DC1 and DC3 are working fine. I hope you can give some advices. Best regards Micha