Network adapters may not connect after you resume a Windows-based computer that is out of docking station range

Applies to: Windows Server 2012 R2 DatacenterWindows Server 2012 R2 StandardWindows Server 2012 R2 Essentials

This article describes an issue that occurs if you put a computer to sleep mode and then move it out of docking station range. A hotfix is available to resolve this issue. Before you install this update, check out the Prerequisites section.


Assume that you put a computer that is running Windows 8.1 or Windows RT 8.1 to sleep mode. Then, it is removed from a docking station so that it is disconnected from a wired Ethernet connection. When the computer resumes and tries to reconnect over a wireless network, it may fail. 


This issue occurs because Windows incorrectly handles the removal of the wired connection while the computer is in sleep mode.


To resolve this issue, we have released a hotfix for Windows 8.1. Even though this issue has only been observed in Windows 8.1 or Windows RT 8.1, the hotfix also applies to Windows Server 2012 R2. 

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 is described in this article. Apply this hotfix only to systems that are experiencing this specific problem.

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, submit a request to 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 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.


To apply this hotfix, you must have update 2919355 installed in Windows 8.1 or Windows Server 2012 R2.

Registry information

To use the hotfix in this package, you do not 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 does not replace a previously released hotfix.


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.