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KCC Errors in the Event Viewer

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  • KCC Errors in the Event Viewer

    We have 4 sites with one DC in each site. On one of the site the directory service in the event viewer is getting filled up with the following errors.

    Product: Windows Operating System
    Event ID: 1566
    Source: NTDS KCC
    Version: 5.2
    Symbolic Name: DIRLOG_KCC_ALL_TRANSPORT_BRIDGEHEADS_STALE
    Message: All domain controllers in the following site that can replicate the directory partition over this transport are currently unavailable.

    Site:
    %1
    Directory partition:
    %3
    Transport:
    %2

    Product: Windows Operating System
    Event ID: 1865
    Source: NTDS KCC
    Version: 5.2
    Symbolic Name: DIRLOG_KCC_DISCONNECTED_SITE
    Message: The Knowledge Consistency Checker (KCC) was unable to form a complete spanning tree network topology. As a result, the following list of sites cannot be reached from the local site.

    Sites:
    %1
    %2
    %3
    %4
    %5
    %6
    %7
    %8


    Product: Windows Operating System
    Event ID: 1311
    Source: NTDS KCC
    Version: 5.2
    Symbolic Name: DIRLOG_KCC_NO_SPANNING_TREE
    Message: The Knowledge Consistency Checker (KCC) has detected problems with the following directory partition.

    Directory partition:
    %1

    There is insufficient site connectivity information in Active Directory Sites and Services for the KCC to create a spanning tree replication topology. Or, one or more domain controllers with this directory partition are unable to replicate the directory partition information. This is probably due to inaccessible domain controllers.

    Any ideas why this could be happening

  • #2
    Re: KCC Errors in the Event Viewer

    Can you try running a netdiag and dcdiag on all your DC's to see if there any issues with your Domain Controllers?

    Michael
    Michael Armstrong
    www.m80arm.co.uk
    MCITP: EA, MCTS, MCSE 2003, MCSA 2003: Messaging, CCA, VCP 3.5, 4, 5, VCAP5-DCD, VCAP5-DCA, ITIL, MCP, PGP Certified Technician

    ** Remember to give credit where credit is due and leave reputation points sigpic where appropriate **

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