The Knowledge Consistency Checker (KCC) has detected problems with the following directory partition. Directory partition: ...

Windows Server 2008

The Knowledge Consistency Checker (KCC) has detected problems with the following directory partition. 
 
Directory partition:
%1 
 
There is insufficient site connectivity information for the KCC to create a spanning tree replication topology. Or, one or more directory servers with this directory partition are unable to replicate the directory partition information. This is probably due to inaccessible directory servers. 
 
User Action 
Perform one of the following actions: 
- Publish sufficient site connectivity information so that the KCC can determine a route by which this directory partition can reach this site. This is the preferred option. 
- Add a Connection object to a directory service that contains the directory partition in this site from a directory service that contains the same directory partition in another site. 
 
If neither of the tasks correct this condition, see previous events logged by the KCC that identify the inaccessible directory servers.

The Knowledge Consistency Checker (KCC) encountered an unexpected error while performing an Active Directory Domain Services ... The Knowledge Consistency Checker (KCC) encountered an unexpected error while performing an Active Directory Lightweight ... The Knowledge Consistency Checker (KCC) failed to stop after the directory service was shut down or restarted. Additional ... The Knowledge Consistency Checker (KCC) failed to update the replication topology for the local directory service. The KCC ... The Knowledge Consistency Checker (KCC) has detected problems with the following directory partition. Directory partition: ... The Knowledge Consistency Checker (KCC) has detected that attempts to establish a replication link with the following directory ... The Knowledge Consistency Checker (KCC) has detected that successive attempts to replicate with the following directory service ... The Knowledge Consistency Checker (KCC) successfully added a replication agreement for the following directory partition. ... The Knowledge Consistency Checker (KCC) successfully terminated the following change notifications. Directory partition: ...