The Active Directory Web service cannot determine whether the computer is a global catalog server (workaround)

I'm using WINDOWS2008R2. When creating a new user, there is a situation:

Windows 2008 domain controllers, which open Active Directory Users and Computers, appear The naming information could not be found because the server is not operational and if you try to connect to a domain controller that is running Windows 2000, make sure that Windows Server SP3 is installed on this DC ....

DNS with this DC on a single server, the DNS server can be opened, view logs every minute to report the error,

Windows cannot verify the uniqueness of the user name because the following error occurred in the global catalog contact: The server is not operational.

The event is viewed as follows:

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Workaround:

Login domain control, found that Hyper virtual network card automatically acquired IP, the physical network cable has been broken, but the machine also has IP and gateway display, do not know if this is the reason ~ after the virtual network card disabled, the problem is excluded ~

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The Active Directory Web service cannot determine whether the computer is a global catalog server (workaround)