DNS client API call fails and could lead to service restart freeze in Windows Server 2012 R2 or Windows Server 2012

This article describes a problem in which DNS client API call fails and could lead to service restart freeze in Windows Server 2012 R2 or Windows Server 2012. An update is available to fix this issue. Before you install this update, see the Prerequisites section.

Symptoms

This issue might occur when an application makes a call to the DNS client service. This creates a remote procedure call (RPC) to the DNS client service. The RPC binding might time out when multiple DNS queries are sent from applications. Therefore, the RPC call fails because of binding time-out and applications don't get responses from the DNS client service. When this happens during a service restart, it could cause service startup freeze. 

Cause

This problem occurs because the time-out value is hardcoded incorrectly.

How to get this update

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

Method 1: Windows Update

This update is provided as a Recommended update on Windows Update. For more information on how to run Windows Update, see How to get an update through Windows Update.

Method 2: Microsoft Download Center

The following files are available for download from the Microsoft Download Center.
Operating systemUpdate
All supported x64-based versions of Windows Server 2012 R2Download Download the package now.
All supported x64-based versions of Windows Server 2012Download Download the package now.


For more information about how to download Microsoft support files, select 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.

Update detail information

Prerequisites

To install this update, install April 2014, update rollup for Windows RT 8.1, Windows 8.1, and Windows Server 2012 R2 (2919355) in Windows 8.1 or Windows Server 2012 R2.

Registry information

To apply this update, you don't have to make any changes to the registry.

Restart requirement

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

Update replacement information

This update doesn't replace a previously released update.

Status

Microsoft has confirmed that this's 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.

File Information

The English (United States) version of this software update installs files that have the attributes that are listed in the following tables.
Windows Server 2012 R2
Windows Server 2012
Additional file information
Properties

Article ID: 3134242 - Last Review: Mar 30, 2016 - Revision: 1

Windows Server 2012 R2 Datacenter, Windows Server 2012 R2 Standard, Windows Server 2012 R2 Essentials, Windows Server 2012 R2 Foundation, Windows Server 2012 Datacenter, Windows Server 2012 Datacenter, Windows Server 2012 Datacenter, Windows Server 2012 Datacenter, Windows Server 2012 Standard, Windows Server 2012 Standard, Windows Server 2012 Standard, Windows Server 2012 Standard, Windows Server 2012 Essentials, Windows Server 2012 Foundation, Windows Server 2012 Foundation, Windows Server 2012 Foundation, Windows Server 2012 Foundation

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