FIX: You cannot connect to the host server in Host Integration Server 2009 or in Host Integration Server 2006 if the SNA Server service is restarted immediately after it is stopped

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Article ID: 974656 - View products that this article applies to.
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SYMPTOMS

Consider the following scenario:
  • In SNA Manager in Microsoft Host Integration Server 2009 or in Microsoft Host Integration Server 2006, the SNA Server service stops.
  • Then, you attempt to restart the SNA Server service less than 60 seconds after it stopped.
In this scenario, attempts to connect to the host server through the 3270 Client will result in the following error message:
No Microsoft Host Integration Server computer found in domain
However, SNA Manager reports that the connection is active and that the status of the configured logical units (LUs) is "available". Additionally, attempts to connect to the host server through LU 6.2 Advanced Program-to-Program Communication (APPC) sessions fail.

RESOLUTION

Service pack information for Host Integration Server 2006

To resolve this problem, obtain the latest service pack for Host Integration Server 2006. For more information, click the following article number to view the article in the Microsoft Knowledge Base:
979497 How to obtain the latest Host Integration Server 2006 service pack

Hotfix information

A supported hotfix is available from Microsoft. However, this hotfix is intended to correct only the problem that is described in this article. Apply this hotfix only to systems that are experiencing the problem described in this article. This hotfix might receive additional testing. Therefore, if you are not severely affected by this problem, we recommend that you wait for the next software update that contains this hotfix.

If the hotfix is available for download, there is a "Hotfix download available" section at the top of this Knowledge Base article. If this section does not appear, contact Microsoft Customer Service and Support to obtain the hotfix.

Note If additional issues occur or if any troubleshooting is required, you might have to create a separate service request. The usual support costs will apply to additional support questions and issues that do not qualify for this specific hotfix. For a complete list of Microsoft Customer Service and Support telephone numbers or to create a separate service request, visit the following Microsoft Web site:
http://support.microsoft.com/contactus/?ws=support
Note The "Hotfix download available" form displays the languages for which the hotfix is available. If you do not see your language, it is because a hotfix is not available for that language.

Prerequisites

You must have Host Integration Server 2009 or Host Integration Server 2006 installed to apply this hotfix.

Restart requirement

You do not have to restart the computer after you apply this hotfix.

Hotfix replacement information

This hotfix does not replace other hotfixes.

File information

The English version of this hotfix has the file attributes (or later file attributes) that are listed in the following table. The dates and times for these files are listed in Coordinated Universal Time (UTC). When you view the file information, it is converted to local time. To find the difference between UTC and local time, use the Time Zone tab in the Date and Time item in Control Panel.

x86-based version of Host Integration Server 2009

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File nameFile versionFile sizeDateTimePlatform
Snadmod.dll8.0.3720.2810,30416-Sep-200902:30x86

x64-based version of Host Integration Server 2009

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File nameFile versionFile sizeDateTimePlatformService branch
Snadmod.dll8.0.3720.21,016,64016-Sep-200902:32x64Not Applicable
Snadmod.dll8.0.3720.2810,30416-Sep-200902:30x86SYSWOW

WORKAROUND

You can prevent the problem from occurring if you delay starting the SNA Server service for at least 60 seconds after the service is stopped.

STATUS

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

Properties

Article ID: 974656 - Last Review: October 7, 2011 - Revision: 3.0
APPLIES TO
  • Microsoft Host Integration Server 2009
  • Microsoft Host Integration Server 2006 Enterprise Edition
  • Microsoft Host Integration Server 2006
Keywords: 
kbautohotfix kbfix kbbug kbexpertiseinter kbsurveynew kbqfe KB974656

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