Article ID: 934202 - View products that this article applies to.
On a Windows Vista-based computer, you experience slow performance after you establish a VPN connection. Additionally, it may take several minutes to open a redirected shell folder. This problem occurs if the following conditions are true:
This problem occurs because the slow connection detection does not occur immediately after the VPN connection is established. By design, the system periodically checks whether the connection is slow. Therefore, the offline status may remain Online until the next slow connection detection starts. If you first log on to a computer when you are offline, and then you connect to a file server, the system does not immediately check the connection. Instead, the system synchronizes offline files. If the connection is slow, the synchronization may take a long time.
When the system starts the periodical check and detects the connection as slow, the offline status changes to Offline (slow connection). If the synchronization has already started, it does not stop even after the offline status changes to Offline (slow connection). Therefore, the slow performance continues to occur until the synchronization finishes. Then, the next synchronization will not start on the slow connection. Therefore, the problem disappears.
Service pack informationTo resolve this problem, obtain the latest service pack for Windows Vista. For more information, click the following article number to view the article in the Microsoft Knowledge Base:
(http://support.microsoft.com/kb/935791/ )How to obtain the latest Windows Vista service pack
Hotfix informationA 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 this specific problem. 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:
PrerequisitesNo prerequisites are required.
Restart requirementYou must restart the computer after you apply this hotfix.
Hotfix replacement informationThis hotfix does not replace any other hotfixes.
File informationThe 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.
Windows Vista, x86-based versions
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Windows Vista, 64-bit versions
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Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" section. This problem was first corrected in Windows Vista Service Pack 1.
After you apply this hotfix, slow connection detection starts immediately after the connection is established. If the connection is slow, the offline status transits to Offline very quickly. For more information about the standard terminology that is used to describe Microsoft software updates, click the following article number to view the article in the Microsoft Knowledge Base:
(http://support.microsoft.com/kb/824684/ )Description of the standard terminology that is used to describe Microsoft software updates
Article ID: 934202 - Last Review: October 8, 2011 - Revision: 6.0
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