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Windows Server 2008 Thread, DCPromo Fails With Error: Failed To Examine The Active Directory Forest... in Technical; The full error message is: Failed to examine the Active Directory forest. The error was: The operation cannot continue because ...
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    DaveP's Avatar
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    DCPromo Fails With Error: Failed To Examine The Active Directory Forest...

    The full error message is:

    Failed to examine the Active Directory forest. The error was: The operation cannot continue because LDAP connect/bind operation failed: error: 1326 (Logon failure: unknown user name or bad password.
    One of our domain controllers failed on Thursday. I couldn't DCPromo it to demote it as a domain controller or promote it. I decided to rebuild it. That didn't work. I rebuilt it with a new name. I am still getting the same error on the newly rebuilt server.

    I have Googled the error with little success. Has anyone solved this problem?

    We have a parent-child domain based network. The server that is giving problems is in the parent domain.

    Server OS: Windows Server 2008 R2 Enterprise.

    Many thanks.

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    januttall's Avatar
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    QQ:
    is the server atached to the domain as a client like a workstation before you try to dcpromo it ?

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    DaveP's Avatar
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    Quote Originally Posted by januttall View Post
    QQ:
    is the server atached to the domain as a client like a workstation before you try to dcpromo it ?
    Yes it is. I would have thought that DCPromo would not work at all if it [the server] were not on the domain.

    Thanks.

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    piyushagrawal's Avatar
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    Hi,

    Try to implement the solution given at:
    RE: [ActiveDir] Weird thing with DCPROMO (SOLVED! - FEEDBACK FOR THOSE I

    Hope it helps you.
    Do update us again.

  5. Thanks to piyushagrawal from:

    DaveP (18th April 2012)

  6. #5

    Michael's Avatar
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    The server that failed in the parent domain, was it the FSMO role holder?

  7. Thanks to Michael from:

    DaveP (18th April 2012)

  8. #6

    DaveP's Avatar
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    Hi. We solved it. Can't go into too much detail here but the answer was unexpected [don't ask]

    Thanks for the replies.

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