Microsoft KB Archive/938009

= Client registration is unsuccessful when you switch System Center Configuration Manager 2007 from mixed mode to native mode or from native mode to mixed mode =

Article ID: 938009

Article Last Modified on 7/31/2007

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APPLIES TO


 * Microsoft System Center Configuration Manager 2007

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Beta Information
This article discusses a beta release of a Microsoft product. The information in this article is provided as-is and is subject to change without notice.

No formal product support is available from Microsoft for this beta product. For information about how to obtain support for a beta release, see the documentation that is included with the beta product files, or check the Web location where you downloaded the release.



SYMPTOMS
When you switch Microsoft System Center Configuration Manager 2007 from mixed mode to native mode or from native mode to mixed mode, client registration is unsuccessful.

Additionally, the following error is logged in the ClientIDManagerStartup.log file on the client computer:

RegTask: Failed to send registration request message. Error 0x80040204

This file is located in the Windows\System32\Ccm\Logs folder.



CAUSE
This problem occurs if the MessageSizeThreshold value in the site control file (Sitectrl.ct0) has been set to a value that is too low. For example, this problem may occur if the MessageSizeThreshold value is set to 5.

Note The site control file is located in the following folder on the site server:

Microsoft Configuration Manager\Inboxes\Sitectrl.box

Important We recommend that you do not change the MessageSizeThreshold value from its default value.



RESOLUTION
To resolve this problem, change MessageSizeThreshold to a value that is not too low. For example, set the value to 10. To do this, follow these steps on each client computer that failed to register with System Center Configuration Manager 2007:  Start the Windows Management Instrumentation Tester tool (WBEMTest). To do this, type wbemtest at a command prompt, and then press ENTER. Connect to the following namespace:

root\ccm\policy\machine\actualconfig

 Click Enum Classes, and then click Recursive. In the Query Result dialog box, double-click CCM_Messaging Configuration. In the Object editor for CCM_Messaging_Configuration dialog box, click Instances. In the Query Result dialog box, double-click CCM_Messaging_Configuration.DummyKey=1.</li> In the Object editor for CCM_Messaging_Configuration.DummyKey=1 dialog box, double-click MessageSizeThreshold.</li> In the Property Editor dialog box, change the value to 10 in the Value box, and then click Save Property.</li> In the Object Editor for CCM_Messaging_Configuration.dummyKey=1 dialog box, click Save Object.</li> In the Object editor for CCM_Messaging_Configuration dialog box, click Save Object, and then close all the Query Result dialog boxes.</li> Exit Windows Management Instrumentation Tester.</li> On the client computer, restart the SMS Agent Host service (CcmExec.exe).</li></ol>

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STATUS
Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the &quot;Applies to&quot; section.

Keywords: kbtshoot kbbug kbnofix kbprb KB938009

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