Directory

Changes to the directory are automatically replicated to all other servers in the site and can be replicated to all servers on the same physical network. This keeps directory information current. Directory problems are often related to servers that are not functioning correctly or to the network. Directory replication problems between sites are usually caused by connection or configuration errors.

Directory information isn't the same between servers in different sites.

Reasons	Actions
The directory has not yet been replicated.	Check the directory replication schedule. To initiate an update, use the Update Now button in the directory General property page. If the problem persists, increase diagnostics logging on the Replication Updates category of the directory, and then check the Windows NT application event log for errors.
Replication between sites has failed.	Check the Windows NT application event log for replication failure messages. Check for directory consistency within the site. Use a server monitor and Performance Monitor to make sure servers in both sites are running normally. Track the replication messages between sites.

Directory information isn't the same between servers within a site.

Reasons	Actions
Directory replication within a site has failed or is delayed.	Check the Windows NT application event log for replication failure messages. Use a server monitor and Performance Monitor to verify that servers in both sites are running normally.
The network is down between the servers.	Use the Ping or the Net Use command from one server to the other to see if they can communicate with each other on the network.