Your replication does not function properly
This can have lots of causes. e.g. Ports are blocked.
You can install the Windows Support Tools from the windows server 2003 CD. They are located under the Support\Tools folder.
Now you can use
These tools can be used to monitor the active directory replication. For more information search on the name of the tool in lubby.
About the Author
Wim Peeters is electronics engineer with an additional master in IT and over 30 years of experience, including time spent in support, development, consulting, training and database administration. Wim has worked with SQL Server since version 6.5. He has developed in C/C++, Java and C# on Windows and Linux. He writes knowledge base articles to solve IT problems and publishes them on the Lubby Knowledge Platform.