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Assume that the ExternalURL property for the Exchange Control Panel (ECP) virtual directory is not set in a Microsoft Exchange Server 2013 environment. In this situation, the Autodiscover.Protocol health set is unhealthy, and the AutodiscoverSelfTestProbe probe fails together with the following event:


To resolve this issue, install the following cumulative update:

2961810 Cumulative Update 6 for Exchange Server 2013


Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" section.

More Information

For more information about the Autodiscover.Protocol health set, go to the following Microsoft website:

General information about the Autodiscover.Protocol health set

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