AD create user problem


  • Hi ALL

    I have a problem when create user in AD:

    any one know what's happening ? is it about global catalog?

    this AD is a new server and new AD. I see the master is already in this AD.

    Monday, December 31, 2012 3:46 AM


All replies

  • Hi,

    Global Catalog error while creating new user in Active Directory

    If you encounter this error message while creating a new user in Active Directory in a Windows 2000 and/or 2003/2008 server:

    "Windows cannot verify that the user name is unique because the following error occurred while contacting the global catalog:
    The server is not operational.

    Windows will create this user account, but the user can log on only after the user name is verified to be unique.Make sure the global
    catalog is available. For more information about troubleshooting this issue, see windows help."

    Chances are the server you logged into does not have the GC for short (Global Catalog) enabled in the Domain Forest. To enable the GC option Run "Active Directory Sites and Services" in "Administrative Tools" you can find it either in "Control Panel" or in "Start > All Programs" or you can simply Run "dssite.msc"

    Once the dssite MMC console is up

    Drill down into "Default-First-Site-Name > Servers > Your-Server-Name > NTDS Settings"

    Tick in the Global Catalog check box, and allow anywhere from 5 to 15 min (or more if you have multiple AD servers) to replicate across your Domain.

    If it was successful you wont see the same error message again.


    or try through below link.

    Global catalog verification:


    MD Disclaimer: The opinion expressed herein are my own knowledge. Deploy this at your own risk. Whenever you see a helpful reply, just click on “Propose As Answer”

    Monday, December 31, 2012 5:51 AM
  • Monday, December 31, 2012 5:58 AM
  • thanks every body!! I will test later~ since the original AD has shut down.... need to turn on before tick that option ?
    Monday, December 31, 2012 6:59 AM
  • Please refer to the following link.

    Hope it helps for you.

    Wednesday, January 02, 2013 11:51 AM