An error occurred while validating the server dns
So cannot unallot the Whois Guard WHOISGUARD ALREADY EXISTS FOR THIS DOMAIN (or) THIS WHOISGUARD ALREADY ASSOCIATED WITH ANOTHER DOMAIN (or) Whois Guard is not associated with this user (or) WHOISGUARD EXPIRED OR WHOISGUARD IS NOT IN USE We welcome your comments, questions, corrections and additional information relating to this article. Please be aware that off-topic comments will be deleted.
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These issues might be familiar to experienced administrators.
But if you're a less-experienced administrator who needs to replace DCs that run Windows Server 2003 with those that run Server 2008 R2, this article will shed some light on these issues and can help you avoid problems.
BTW: The other computer on the home network is visible, though in a different workgroup.
My Cloud devices require forward and reverse name resolution and must resolve the WD domain names wd2go.com, and
If the DNS servers used by the ISP, Router, PC or My Cloud cannot resolve the required domains, the Error Undefined message can occur.
Still, administrators often have questions: The Microsoft article " Running Adprep.exe" explains all that and more: the utility's general purpose, the process for running the necessary commands, and how to validate the utility's success.
(If you want to review the exact changes that Adprep operations make to prepare an existing AD, see the Microsoft articles " Windows Server 2008: Appendix of Changes to to Support AD DS" and " Windows Server 2008 R2: Appendix of Changes to to Support AD DS." ) When running Adprep, plan for these important factors: If you can prepare for these potential issues and follow the process that the previously mentioned articles describe, you should have no trouble.