Microsoft KB Archive/271379

= Receiving Many Simultaneous H.323 Requests Causes a Computer with ISA Server Installed to Hang =

Article ID: 271379

Article Last Modified on 2/28/2007

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APPLIES TO


 * Microsoft Windows 2000 Service Pack 1
 * Microsoft Windows 2000 Advanced Server
 * Microsoft Windows 2000 Service Pack 1

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This article was previously published under Q271379



SYMPTOMS
After a few seconds of receiving a few hundred simultaneous H.323 requests, a computer that has Microsoft Internet Security and Acceleration (ISA) Server installed may stop responding (hang).



CAUSE
This behavior occurs because of a single-thread deadlock in the RemoveRandomFWPacket routine.



RESOLUTION
To resolve this problem, obtain the latest service pack for Windows 2000. For additional information, click the following article number to view the article in the Microsoft Knowledge Base:

260910 How to Obtain the Latest Windows 2000 Service Pack

The English version of this fix should have the following file attributes or later:

  Date        Time    Version        Size     File name 12/05/2000 05:51a  5.0.2195.2778  123,184  afd.sys 12/05/2000 05:51a  5.0.2195.2779  107,280  msafd.dll 12/05/2000 05:51a  5.0.2195.2785  323,088  tcpip.sys 12/05/2000 05:51a  5.0.2195.2572   16,240  tdi.sys 12/05/2000 05:51a  5.0.2195.2104   17,680  wshtcpip.dll



STATUS
Microsoft has confirmed that this is a problem in the Microsoft products that are listed at the beginning of this article. This problem was first corrected in Windows 2000 Service Pack 2.



MORE INFORMATION
For additional information about how to install Windows 2000 and Windows 2000 hotfixes at the same time, click the article number below to view the article in the Microsoft Knowledge Base:

249149 Installing Microsoft Windows 2000 and Windows 2000 Hotfixes

Keywords: kbbug kbfix kbwin2000presp2fix kbqfe kbhotfixserver KB271379

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