Quick question on Active Directory replication. The AD topology is simple: Hub site and 10 Branch sites. I have one connection object between Branch "A" DC and Hub DC in Active Directory Sites and Services. Does it mean that Branch "A" DC has only one replication partner? If so, why do I see replication error ID 1864 on the Branch "A" DC related to domain controllers in other sites?
Event Type: Error Event Source: NTDS Replication Event Category: Replication Event ID: 1864 Date: 6/4/2015 Time: 12:16:08 PM User: NT AUTHORITY\ANONYMOUS LOGON Computer: ABranchDC Description: This is the replication status for the following directory partition on the local domain controller. Directory partition: DC=ForestDnsZones,DC=Company,DC=com The local domain controller has not recently received replication information from a number of domain controllers. The count of domain controllers is shown, divided into the following intervals. More than 24 hours: 4 More than a week: 3 More than one month: 3 More than two months: 1 More than a tombstone lifetime: 1 Tombstone lifetime (days): 60
I know that there are some DCs in other branch sites that were not properly demoted. Working on that. But I'm curious, why do I see those errors? Only one partition error is shown here, while I'm getting the same error for Configuration, Schema and DomainDnsZones also.