The Microsoft Exchange RPC Client Access service crashes randomly on an Exchange Server 2010 Client Access server that has the UDP push notification feature enabled

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Article ID: 2700705 - View products that this article applies to.
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SYMPTOMS

Consider the following scenario:
  • You have Update Rollup 3 for Microsoft Exchange Server 2010 Service Pack 1 (SP1) or a later update rollup installed in a Microsoft Exchange Server 2010 environment.
  • You enable the User Datagram Protocol (UDP) push notification feature on an Exchange Server 2010 Client Access server.
  • You access a mailbox by using Microsoft Office Outlook 2003.
In this scenario, the Microsoft Exchange RPC Client Access service crashes randomly on the Client Access server. Additionally, the following event is logged in the Application log:

Log Name: Application
Source: MSExchange Common
Date: Date 
Event ID: 4999
Task Category: General
Level: Error
Keywords: Classic
User: N/A
Computer: Computer 
Description:
Watson report about to be sent for process id: Process ID, with parameters: E12, Build Type, Version Number, M.E.RpcClientAccess.Service, M.E.RpcClientAccess.Service, M.E.R.S.RpcServer.SendUdpPacket, S.N.Sockets.SocketException, XXXX, Version Number
ErrorReportingEnabled: True


Note When this issue occurs, users who are using Outlook cannot access the Exchange Server 2010 mailboxes for a short time.

CAUSE

This issue occurs because the Exchange RPC Client Access service cannot handle the SocketException exception that may occur when the service sends UDP push notifications to Outlook 2003.


RESOLUTION

To resolve this issue, install the update rollup that is described in the following article in the Microsoft Knowledge Base: 
2685289 Description of Update Rollup 3 for Exchange Server 2010 Service Pack 2

STATUS

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, click the following article number to view the article in the Microsoft Knowledge Base:
2009942 Folders take a long time to update when an Exchange Server 2010 user uses Outlook 2003 in online mode
For more information about the SocketException exception, go to the following Microsoft Developer Network (MSDN) website:
SocketException Class

Properties

Article ID: 2700705 - Last Review: May 31, 2012 - Revision: 2.0
APPLIES TO
  • Microsoft Exchange Server 2010 Service Pack 2, when used with:
    • Microsoft Exchange Server 2010 Enterprise
    • Microsoft Exchange Server 2010 Standard
Keywords: 
kbqfe kbfix kbexpertiseinter kbsurveynew KB2700705

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