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Alert "One or more AD servers are offline" is displayed when attempting to connect to a Lync 2013 server in the Diagnostic Console
Description
In Diagnostic Console, in the Lync 2013 servers connections the alert "One or more AD servers are offline" is displayed. All the Domain Controllers are online. No problem with the Exchange 2013 servers connection. Exchange Servers and Lync Servers are on the same subnet.
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