When you open the SNA Manager MMC snap-in in a Microsoft Host Integration Server 2010 or Microsoft Host Integration Server 2009 environment, you receive a message that resembles the following:
Link Services 'link_service_name' on server server_name have been deleted.
When you receive this message, the host or peer connections that are defined on the specified Host Integration Server system are reset to use a Link service setting of None. When this occurs, the host and peer connections that are reset cannot be enabled, and users on those connections cannot obtain a host session.
This problem occurs because SNA Manager deletes link service records from the Host Integration Server configuration file when it detects that the link services are no longer installed on the Host Integration Server system.
To resolve this problem, apply either the cumulative update or hotfix that is mentioned in this article.
Cumulative update information
Host Integration Server 2010
The fix that resolves this issue is included in cumulative update package 6 for Host Integration Server 2010. To obtain Cumulative Update 6, see the following Microsoft Knowledge Base article:
2752426 Cumulative update package 6 for Host Integration Server 2010
Host Integration Server 2009
The fix that resolves this problem is included in cumulative update package 7 for Host Integration Server 2009. To obtain Cumulative Update 7, see the following Microsoft Knowledge Base article:
2975320 Cumulative Update 7 for Host Integration Server 2009
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, go to the following Microsoft website:
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.
Host Integration Server 2010
You must have Microsoft Host Integration Server 2010 Cumulative Update 5 (CU5) installed to apply this hotfix. For more information about Cumulative Update 5, see the following Microsoft Knowledge Base article:
2728515 Cumulative update package 5 for Host Integration Server 2010
You may have to restart the computer after you apply this hotfix.
This hotfix does not replace a previously released hotfix.
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.
For all supported x86-based versions of Host Integration Server 2010
For all supported x64-based versions of Host Integration Server 2010
Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" section.
After this update is applied, SNA Manager no longer deletes the link service records from the Host Integration Server configuration file when it detects that a link service is not installed on the system. The updated behavior includes a warning message that the link service is not installed. The warning message is intended to let the Host Integration Server administrator know that a link service may be missing.