A VPN connection through a third-party VPN server disconnects after an hour on a Windows-based computer

Gäller för: Windows Server 2012 R2 DatacenterWindows Server 2012 R2 StandardWindows Server 2012 R2 Essentials

Symptoms


On a computer that is running Windows 8.1, Windows RT 8.1, Windows Server 2012 R2, Windows 8, Windows RT, or Windows Server 2012, you establish a Layer 2 Tunneling Protocol/Internet Protocol security (L2TP/IPsec) virtual private network (VPN) connection through a third-party VPN server. After about an hour, VPN disconnects automatically. In this case, you have to click Connect to reconnect to the VPN server.

Cause


During re-keying, the IPsec delays in establishing a new quick mode security association (QM SA) before the old QM SA expires. Because the client does not have an active QM SA for some time, VPN is disconnected.

Resolution


To resolve this issue in Windows 8.1, Windows RT 8.1, or Windows Server 2012 R2, install update rollup 2962409, or install the hotfix that is described in this article.

To resolve this issue in Windows 8 or Windows Server 2012, install the update or hotfix that is described in this article.

Update for Windows 8.1, Windows RT 8.1, or Windows Server 2012 R2

For more information about update rollup 2962409, click the following article number to view the article in the Microsoft Knowledge Base:
2962409 Windows RT 8.1, Windows 8.1, and Windows Server 2012 R2 update rollup: June 2014

Update for Windows 8 or Windows Server 2012

Method 1: Windows Update

This update is available from Windows Update.

Method 2: Microsoft Download Center

The following files are available for download from the Microsoft Download Center:
Operating systemUpdate
All supported x86-based versions of Windows 8Download Download the package now.
All supported x64-based versions of Windows 8 Download Download the package now.
All supported x64-based versions of Windows Server 2012Download Download the package now.
Note The update for Windows RT can be obtained only from Windows Update.

For more information about how to download Microsoft support files, click the following article number to view the article in the Microsoft Knowledge Base:
119591 How to obtain Microsoft support files from online services
Microsoft scanned this file for viruses. Microsoft used the most current virus-detection software that was available on the date that the file was posted. The file is stored on security-enhanced servers that help prevent any unauthorized changes to the file.

Hotfix information

A supported hotfix is available from Microsoft Support. 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.

Prerequisites

To apply this hotfix, you must be running Windows 8.1, Windows Server 2012 R2, Windows 8, or Windows Server 2012.

Restart requirement

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

Hotfix replacement information

This hotfix does not replace any previously released hotfix.

File information

The English (United States) version of this hotfix installs files that have the attributes that are listed in the following tables. The dates and the times for these files are listed in Coordinated Universal Time (UTC). The dates and the times for these files on your local computer are displayed in your local time together with your current daylight saving time (DST) bias. Additionally, the dates and the times may change when you perform certain operations on the files.


Additional file information



Status


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

References


Learn about the terminology that Microsoft uses to describe software updates.