Domain controller 1&2 offline over 2 months

EXE 1 Reputation point
2021-09-18T18:32:32.213+00:00

Domain controller was setup, then taken offline for longer than the tombstone limit. Now I can't get it to replicate again with DC2. please, any solution to replicate back

Active Directory
Active Directory
A set of directory-based technologies included in Windows Server.
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  1. Dave Patrick 426.3K Reputation points MVP
    2021-09-18T18:41:53.687+00:00

    If a domain controller has tombstoned then the solution is to seize roles (if necessary) to a healthy one.
    https://learn.microsoft.com/en-us/troubleshoot/windows-server/identity/transfer-or-seize-fsmo-roles-in-ad-ds

    then perform cleanup to remove remnants
    https://learn.microsoft.com/en-us/windows-server/identity/ad-ds/deploy/ad-ds-metadata-cleanup
    https://techcommunity.microsoft.com/t5/itops-talk-blog/step-by-step-manually-removing-a-domain-controller-server/ba-p/280564

    then rebuild the failed one. I'd use dcdiag / repadmin tools to verify health correcting all errors found before starting any operations. Then stand up the new one, patch it fully, license it, join existing domain, add active directory domain services, promote it also making it a GC (recommended), transfer FSMO roles over (optional), transfer pdc emulator role (optional), use dcdiag / repadmin tools to again verify health.

    --please don't forget to upvote and Accept as answer if the reply is helpful--

    1 person found this answer helpful.

  2. Limitless Technology 39,466 Reputation points
    2021-09-20T14:33:39.223+00:00

    Hello,

    Thank you for your question.

    If the tombstone limit already passed then it may not Sync with AD properly and its better to decommission and promote new one with new name and ip or you have to use meta cleanup for AD objects.
    Please also consider to download Active Directory Replication Status Tool and see how How is the health of AD now.

    https://www.microsoft.com/en-in/download/details.aspx?id=30005

    If the reply was helpful, please don’t forget to upvote or accept as answer.

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