Microsoft KB Archive/239132

= Exchange Clients Appear to Intermittently Hang During Normal Operation =

Article ID: 239132

Article Last Modified on 11/1/2006

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APPLIES TO


 * Microsoft Windows NT Server 4.0, Terminal Server Edition
 * Microsoft Windows NT Server 4.0 Enterprise Edition
 * Microsoft Windows NT Server 4.0 Standard Edition

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This article was previously published under Q239132



SYMPTOMS
Microsoft Exchange and Outlook Clients appear to stop responding (hang) periodically during normal operation when used in conjunction with an Exchange Server computer that has clients that connect over slower connections.



CAUSE
The remote procedure call (RPC) Receive Any Thread in use by the Microsoft Exchange Information Store Service is waiting to receive additional information from a client.



Windows NT Server or Workstation 4.0
To resolve this problem, obtain the latest service pack for Windows NT 4.0 or the individual software update. For information on obtaining the latest service pack, please go to:


 * http://www.microsoft.com/windows/servicepacks/ -or-


 * 152734how to obtain the latest windows nt 4.0 service pack

For information on obtaining the individual software update, contact Microsoft Product Support Services. For a complete list of Microsoft Product Support Services phone numbers and information on support costs, please go to the following address on the World Wide Web:

http://support.microsoft.com/directory/overview.asp

Windows NT Server 4.0, Terminal Server Edition
To resolve this problem, obtain the latest service pack for Windows NT Server 4.0, Terminal Server Edition. For additional information, click the following article number to view the article in the Microsoft Knowledge Base:

152734 How to Obtain the Latest Windows NT 4.0 Service Pack



STATUS
Microsoft has confirmed that this is a problem in Windows NT 4.0 and Windows NT Server 4.0, Terminal Server Edition.

This problem was first corrected in Windows NT Server 4.0 Service Pack 6 and Windows NT Server 4.0, Terminal Server Edition Service Pack 6.



MORE INFORMATION
Clients that are connecting to the Exchange Server computer over slower connections have a higher latency in the sending and receiving of data grams. The RPC Receive Any Thread is waiting on additional data grams before processing the clients request. This causes other clients that are attempting to communicate on the Receive Any thread to the Exchange Information Store to appear to hang while waiting for a response from the Exchange Server computer.

For additional information on performance issues, please refer to the following article in the Microsoft Knowledge Base:

232512 TCP/IP may Retransmit Packets Prematurely

Additional query words: 4.00 exchange performance slow client

Keywords: kbhotfixserver kbqfe kbbug kbfix kbqfe KB239132

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