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Can't access a CAS website such as OWA/ECP/Autodiscover in Exchange Server 2016

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Symptoms

In a Microsoft Exchange Server 2016 environment, assume that the Active Directory forest root domain is configured as a single label domain that has one or two characters, such as ab. When a user or administrator tries to access a website (for example, Outlook Web App (OWA), Exchange Control Panel (ECP), Autodiscover and so on) through the Client Access services (CAS), an unhandled exception occurs.

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Cause

This issue occurs because the single label domain isn't correctly handled in forest name validation.

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Resolution

To fix this issue, install Cumulative Update 9 for Exchange Server 2016 or a later cumulative update for Exchange Server 2016.

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Status

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

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References

Learn about the terminology that Microsoft uses to describe software updates.

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Keywords: kbexpertiseadvanced, kbqfe, kbfix, kb, CI74029, the Active Directory forest root domain is configured as a single label domain that has one or two characters, can't access OWA/ECP/Autodiscover website, kbsurveynew, kbContentAuto, an unhandled exception occurs

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Article Info
Article ID : 4073111
Revision : 8
Created on : 3/5/2018
Published on : 3/20/2018
Exists online : False
Views : 264