Microsoft KB Archive/915788

= You may receive an error message in Windows Media Player 10 when you try to play back content that is protected by Windows Media Digital Rights Management =

Article ID: 915788

Article Last Modified on 3/9/2006

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APPLIES TO


 * Microsoft Windows Media Player 10
 * Microsoft Windows XP Media Center Edition 2005 Update Rollup 2

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SYMPTOMS
When you try to play back content that is protected by Microsoft Windows Media Digital Rights Management (DRM), you may receive one of the following error messages:

Message 1

Windows Media Player cannot synchronize or burn the protected file because the Player cannot verify that the license is valid. A problem occured while contacting the Internet to determine the current date and time

Note In this message, &quot;occured&quot; is a misspelling of the word &quot;occurred.&quot;

Message 2

A problem occurred during the security upgrade. Try again later.

Message 3

An error occurred during license backup or restore. A required Web page cannot be displayed.

Message 4

To play the file, Windows Media Player must download a license from the Internet. However, the license server is not available (for example, the server is busy or not online).

You may also experience this problem when you try to do one of the following tasks:
 * Synchronize content to a portable device
 * Download security updates
 * Back up or restore licenses

Note The process of upgrading the security of the DRM components is known as individualization.



CAUSE
The Microsoft Windows Media Player 10 contains a malformed version string. This version string is added to the HTTP header when the Windows Media Digital Rights Management subsystem makes HTTP requests such as the following to the Microsoft forwarding service:
 * Backup and restore
 * Individualization
 * Synchronization of the secure clock

These requests are sent to the Microsoft forwarding service. However, because the HTTP header contains the malformed version string, an HTTP error causes the forwarding service to fail.



RESOLUTION
To resolve this problem, uninstall the software update that is discussed in the following Microsoft Knowledge Base (KB) article:

910393 FIX: Protected content may no longer play after you install Update Rollup 2 for Windows XP Media Center Edition 2005



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

Keywords: kbinfo kbprb KB915788

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