Network connectivity dropped when time is adjusted on a DHCP client that is running Windows 7 SP1 or Windows Server 2008 R2 SP1


Consider the following scenario:
  • You have Dynamic Host Configuration Protocol (DHCP) installed on a server that is running Windows Server 2008 R2 Service Pack 1 (SP1).
  • You have the DHCP server configured to use the Active Scope option. Also, the lease time is set to five minutes.
  • You install update 2459530 on a Windows 7 SP1 DHCP client and connect it to the same subnet as the DHCP server.
  • You force a time jump of more than five minutes in the future on the DHCP client.
  • You wait several minutes until the current lease is considered to be expired.

In this scenario, you notice that network connectivity is lost for at least five minutes.


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.


To apply this hotfix, you must have Service Pack 1 for Windows 7 or Windows Server 2008 R2 installed.

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


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


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

Article ID: 3063060 - Last Review: Jun 9, 2015 - Revision: 1