System Center Configuration Manager 2007 cannot wake up more than 30 clients at a time

When you use the Microsoft System Center Configuration Manager 2007 "Wake on LAN" feature, Configuration Manager cannot wake up more than 30 clients at a time. For each failed try to send a wake-up packet, the following error is logged in the Wolmgr.log file:

This problem occurs because of how Configuration Manager builds the list of target clients to which it will send wake-up packets. This problem does not occur on systems that are running Configuration Manager 2007 Service Pack 1. For more information about Configuration Manager 2007 Service Pack 1, visit the following Microsoft Web site:

Hotfix information

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. 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, visit the following Microsoft Web site: 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

There are no prerequisites for installing this hotfix package.

Restart information

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

Hotfix replacement information

This hotfix does not replace a previously released hotfix.

File information

This hotfix package may not contain all the files that you must have to fully update a product to the latest build. This hotfix package contains only the files that you must have to correct the issues that are listed in this article.

The English (United States) version of this hotfix has the file attributes (or later file attributes) that are listed in the following table. The dates and times for these files are listed in Coordinated Universal Time (UTC). When you view the file information, it is converted to local time. To find the difference between UTC and local time, use the Time Zone tab in the Date and Time item in Control Panel.

System Center Configuration Manager 2007, x86-based version

System Center Configuration Manager 2007, x64-based version

Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" section. This problem was first corrected in Configuration Manager Service Pack 1.

For more information about software update terminology, click the following article number to view the article in the Microsoft Knowledge Base: