Can't promote DC - "verification of prerequisites for active directory preparation failed "the specified user is not a member of the following groups"

Boe Dillard 666 Reputation points


I am trying to promote a DC into an existing domain.

This is the account on the existing domain I am using. Capture


Windows Server
Windows Server
A family of Microsoft server operating systems that support enterprise-level management, data storage, applications, and communications.
12,444 questions
Active Directory
Active Directory
A set of directory-based technologies included in Windows Server.
6,087 questions
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Accepted answer
  1. Dave Patrick 426.3K Reputation points MVP

    Please run;

    Dcdiag /v /c /d /e /s:%computername% >C:\dcdiag.log (run on PDC emulator) repadmin /showrepl >C:\repl.txt (run on any domain controller) ipconfig /all > C:\%computername%.txt (run on EVERY domain controller) ipconfig /all > C:\newDC.txt (run on problem one)

    Also check the domain controller System and Replication (DFS or FRS) event logs for errors since last boot. Post the Event Source and Event IDs of any found. (no evtx files)

    then put unzipped text files up on OneDrive and share a link.

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4 additional answers

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  1. Martin Myers 15 Reputation points

    I had this issue when trying to promote a new 2022 server as an additional domain controller. I ended up changing the credentials from domain\user to user@domain.local and it worked.

    3 people found this answer helpful.

  2. Boe Dillard 666 Reputation points

    Thanks - is there any way I can email you? I prefer not to put the files out there. you can email me at boe_d and I use hotmail

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  3. Boe Dillard 666 Reputation points

    OK - I put it up there are you ready to receive it - I'd like to take it down right after.

  4. Boe Dillard 666 Reputation points

    Thanks- I can't believe it but it just want through. I think after I added the enterprise membership it took about an hour for it to accept it.