AD Replicaiton not working

Posted on 2007-08-09
Last Modified: 2013-11-05
There are four DCs in a domain: DC1, DC2, DC3, and DC4.
There is a child domain with one DC: CDC1

Replication links for DC1 and DC2 are automatically created for only DC3 and DC4.
Replication links for DC3 and DC4 are automatically created for only DC1 and DC2.

A Replicaition link for CDC1 is created for DC1, DC2, DC3, and DC4.  But no replicaiton links for any DCs are created for CDC1.

How can this be remedied so that replication links for all DCs are created for all DCs?
Question by:binnykuriakose
    LVL 13

    Expert Comment

    by:Kini pradeep
    I believe you donot have any manual connection objects created on the Dc's with the Kcc turned off ?
    if so can you run Repadmin /kcc on the domain controllers. Kcc should be able to check the replication topology and create the connection objects. If not then we could check other settings.
    also are any errors reported related to KCC in the Directory services event logs ??
    LVL 30

    Accepted Solution

    You should not expect to see a connection object to each and every DC from each and every DC - the KCC does not create a full mesh topology like the one you're describing since the scalability implications would be horrendous.  If you have manually created any replication connections, delete them and re-trigger the KCC - for a 4-DC network, the KCC will typically create the optimum topology for your environment.

    If you suspect replication issues, you can also run dcdiag /v and netdiag /v from each domain controller to see if there are any likely-looking error messages.

    Featured Post

    What Is Threat Intelligence?

    Threat intelligence is often discussed, but rarely understood. Starting with a precise definition, along with clear business goals, is essential.

    Join & Write a Comment

    Starting in Windows Server 2008, Microsoft introduced the Group Policy Central Store. This automatically replicating location allows IT administrators to have the latest and greatest Group Policy (GP) configuration settings available. Let’s expl…
    Find out how to use Active Directory data for email signature management in Microsoft Exchange and Office 365.
    This tutorial will walk an individual through the steps necessary to join and promote the first Windows Server 2012 domain controller into an Active Directory environment running on Windows Server 2008. Determine the location of the FSMO roles by lo…
    This tutorial will walk an individual through the process of transferring the five major, necessary Active Directory Roles, commonly referred to as the FSMO roles from a Windows Server 2008 domain controller to a Windows Server 2012 domain controlle…

    734 members asked questions and received personalized solutions in the past 7 days.

    Join the community of 500,000 technology professionals and ask your questions.

    Join & Ask a Question

    Need Help in Real-Time?

    Connect with top rated Experts

    23 Experts available now in Live!

    Get 1:1 Help Now