specified domain either doesn't exist or be contacted

[guest]

Situation: 1. When trying to open Active Directory Users and Computers, you may receive this message: "The specified domain could not be found because specified domain either does not exist or could not be contacted".
2. The indows Event Viewer logs: Event 7013 - Logon attempt with current password failed with the following error: Logon failure: unknown user name or bad password.
3. If you run the Dcdiag tool on the domain controller, you may also receive Sysvol errors, and you may not be able to resolve any operation manager roles. When you attempt to resolve these roles, you receive an "error 1355" message.
4. Event 13516: The File Replication Service has stopped preventing the computer from becoming a domain controller.

Resolution: This issue can occur because the Sysvol and/or Netogon directory is not shared out on the domain controller. To verify that the Sysvol directory is shared out, you can either open Windows Explorer, or type net share at a command prompt to see if the Sysvol share is showing. By default, the Sysvol share is located in the following folder: %SystemRoot%\Sysvol\Sysvol.

To resolve this issue, share out the Sysvol directory. However, it is recommended that you enable the system to share this directory. It is not recommended that you share out this directory by using Windows Explorer.

For additional information about enabling the system to share this directory out on its own, click the article number below to view the article in the Microsoft Knowledge Base:
257338 (http://support.microsoft.com/kb/257338/EN-US/ ) Troubleshooting Missing Sysvol and Netlogon Shares

[guest]

DNS problems might be preventing name resolution for the source domain controller.

This issue can occur because the SYSVOL directory is not shared out on the domain controller that will be used to source Active Directory.