Article ID: 284929 - View products that this article applies to.
This article was previously published under Q284929
After you install Active Directory, you may be unable to start the Active Directory snap-ins on the domain controller. When you try to start the Active Directory Users and Computers snap-in, the following error message may appear:
Naming information cannot be located because: no authority could be contacted for authentication. Contact your system administrator.
This behavior can occur when Domain Name Service (DNS) is not correctly configured.
To resolve this behavior, make sure that the zones on your DNS server are configured correctly and that your DNS server is authoritative for the zone that contains the Active Directory domain name.
Try again to start the Active Directory Users and Computers snap-in. If you receive the same error message, use the DCPROMO utility to remove Active Directory, restart your computer, and then use DCPROMO to reinstall Active Directory. Verify that Active Directory has been installed successfully.
Before you install Active Directory, you must install and configure a DNS server that is authoritative for your Active Directory domain name. Active Directory depends on DNS to function correctly and requires the creation of the SYSVOL share.
NOTE: The SYSVOL share must be installed on an NTFS partition. At least one NTFS partition must be present on your domain controller in order to install Active Directory.
To verify that Active Directory has been installed successfully:
For more information, refer to the following articles in the Microsoft Knowledge Base:
(http://support.microsoft.com/kb/237675/EN-US/ )Setting Up the Domain Name System for Active Directory
(http://support.microsoft.com/kb/241515/EN-US/ )How to Verify the Creation of SRV Records for a Domain Controller
(http://support.microsoft.com/kb/239897/EN-US/ )SRV Resource Records May Not Be Created on Domain Controller
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