Site-to-site VPN goes down in Windows 8.1 or Windows Server 2012 R2

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

This article describes an issue in which site-to-site VPN goes down in Windows 8.1 or Windows Server 2012 R2. A hotfix is available to fix this issue. Before you install this hotfix, see the Prerequisites section.


Issue 1

The issue occurs when you try to start an Internet Key Exchange v2 (IKEv2) exchange during the initial VPN connection establishment on a certain third-party VPN device, such as a Cisco ASA. During the initial exchange, if these third-party devices expect a traffic selector other than the Microsoft default selector, they reject the initial connection request, and the tunnel establishment fails.

Note The traffic selector is the setting for endpoint networks that can send traffic over the IPsec tunnel.

Issue 2

This issue occurs during the IKEv2 rekey of an existing site-to-site VPN connection. During the rekey, the site-to-site connection may be disconnected under certain circumstances.


Cause of issue 1

This issue occurs because of the traffic selector ID mismatch in the IKEv2 connection.

Cause of issue 2

This issue occurs because the responder server uses an invalid traffic selector ID.


To fix these issues, we've released a hotfix for Windows 8.1 or Windows Server 2012 R2.

  • This hotfix enables administrators to set a nondefault traffic selector on Windows RRAS Gateway that's running Windows Server 2012 R2, and this hotfix enables the interoperability for the third-party VPN devices.
  • After you install this hotfix, the responder server will use the correct traffic selector ID during the rekey.

Hotfix information

Important If you install a language pack after you install this hotfix, you must reinstall this hotfix. Therefore, we recommend that you install any language packs that you need before you install this hotfix. For more information, see Add language packs to Windows.

A supported hotfix is available from Microsoft. However, this hotfix is intended to correct only the problem that's described in this article. Apply this hotfix only to systems that are experiencing this specific problem.

If the hotfix is available for download, there's a "Hotfix Download Available" section at the top of this Knowledge Base article. If this section doesn't appear, submit a request to Microsoft Customer Service and Support to get 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 don't 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 website: Note The "Hotfix Download Available" form displays the languages for which the hotfix is available. If you don't see your language, it's because a hotfix isn't available for that language.


To apply this hotfix, install update 2919355 in Windows 8.1 or Windows Server 2012 R2.

Registry information

To use the hotfix in this package, you don't have to make any changes to the registry.

Restart requirement

You may have to restart the computer after you apply this hotfix.

Hotfix replacement information

This hotfix doesn't replace a previously released hotfix.

File Information

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


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


See the terminology that Microsoft uses to describe software updates.