Hi There,
I was instructed to patch office AD server with mentioned security update. it looks all domains servers are flagged with similar error like this:
Log Name: Directory Service
Source: Microsoft-Windows-ActiveDirectory_DomainService
Date: 9/29/2020 10:55:12 PM
Event ID: 1789
Task Category: Knowledge Consistency Checker
Level: Error
Keywords: Classic
User: ANONYMOUS LOGON
Computer: AD1.domain.local
Description:
The site CN=Site1,CN=Sites,CN=Configuration,DC=domain,DC=local contains one or more directory servers, but is not connected by any site links. This site cannot replicate with other sites unless they are connected by site links.
Event Xml:
<Event xmlns="http://schemas.microsoft.com/win/2004/08/events/event">
<System>
<Provider Name="Microsoft-Windows-ActiveDirectory_DomainService" Guid="{0e8478c5-3605-4e8c-8497-1e730c959516}" EventSourceName="NTDS KCC" />
<EventID Qualifiers="49152">1789</EventID>
<Version>0</Version>
<Level>2</Level>
<Task>1</Task>
<Opcode>0</Opcode>
<Keywords>0x8080000000000000</Keywords>
<TimeCreated SystemTime="2020-09-29T14:55:12.438350400Z" />
<EventRecordID>844600</EventRecordID>
<Correlation />
<Execution ProcessID="556" ThreadID="1868" />
<Channel>Directory Service</Channel>
<Computer> AD1.domain.local</Computer>
<Security UserID="S-1-5-7" />
</System>
<EventData>
<Data>CN=site1,CN=Sites,CN=Configuration,DC=domain,DC=local</Data>
</EventData>
All AD servers have such type of error in director service event log.
Many thanks for you help
Nice to meet you here