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Active Directory does not exist or cannot be contacted

[This topic is prerelease documentation and is subject to change in future releases. Blank topics are included as placeholders. If you have feedback, we'd love to hear it! Email us at ExchangeHelpFeedback@microsoft.com.]  

Applies to: Exchange Server 2016

Microsoft Exchange Server 2016 Setup can’t continue because it can't contact a valid Active Directory directory service site. Setup requires that the server you’re installing Exchange on is able to locate the configuration naming context in Active Directory.

To resolve this issue, verify that the user account running Exchange Setup is an Active Directory user and then run Setup again. If this doesn’t resolve the issue, follow the guidance about using the dcdiag.exe and repadmin.exe support tools from the topics below to further diagnose the problem.

For more information about Active Directory troubleshooting and configuration for Exchange, see the following topics:

Having problems? Ask for help in the Exchange forums. Visit the forums at: Exchange Server, Exchange Online, or Exchange Online Protection.

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