Crash occurs in the Autodiscover application pool in an Exchange Server 2010 environment

Article ID: 2673591 - View products that this article applies to.
Expand all | Collapse all


When the Autodiscover service detects an authentication error in a Microsoft Exchange Server 2010 environment or in another environment, a crash occurs in the Autodiscover application pool. Additionally, Event ID 4999 is logged. The following is a sample of the event that is logged when this issue occurs:
Time:    Time
ID:       4999
Level:    Error
Source: MSExchange Common
Machine:  Machine Name
Message:  Watson report about to be sent for process id: Process ID, with parameters: E12, c-RTL-AMD64, 14.02.0247.005, AutoDisc, M.Exchange.Autodiscover, M.E.A.W.LegacyErrorHandler.HandleError, S.S.Diagnostics.CallbackException, 7eb3, 14.02.0247.003.
ErrorReportingEnabled: True


This issue occurs because the System.ServiceModel.Diagnostics.CallbackException function in the Microsoft.Exchange.Autodiscover.WCF.LegacyErrorHandler.ReportException function stops responding.


To resolve this issue, install the following update rollup:
2685289 Description of Update Rollup 3 for Exchange Server 2010 Service Pack 2


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


Article ID: 2673591 - Last Review: May 29, 2012 - Revision: 1.0
  • Microsoft Exchange Server 2010 Service Pack 2, when used with:
    • Microsoft Exchange Server 2010 Enterprise
    • Microsoft Exchange Server 2010 Standard
kbsurveynew kbfix kbqfe kbexpertiseinter KB2673591

Give Feedback


Contact us for more help

Contact us for more help
Connect with Answer Desk for expert help.
Get more support from