"Configuration Error" occurs when you try to add a Windows Media Center extender

Problem

You may see the following error message when you try to add a Windows Media Extender on a Windows Vista Media Center computer:

Configuration Error

An error was encounter while configuring your computer for use with this extender.

This problem can occur if one of the following is true:

  • The Media Center certificate is corrupted.
  • The Network List service is not running.

Solution

To resolve this issue, try the following solutions:

Solution 1: Remove the Media Center Extender certificate

To remove the Media Center Extender certificate, follow these steps:

Click Start, type mmc in the Start Search box, and then press Enter. If you are prompted for an administrator password or for confirmation, type the password, or click Continue.

  1. On the File menu, click Add/Remove Snap-in.
  2. Click Certificates, and then click Add.
  3. Select Computer account, and then click Next.
  4. Select Local computer, and then click Finish.
  5. Click OK.
  6. In the Navigation Pane under Console Root, expand Certificates, expand Personal, and then click Certificates.
  7. Right-click Microsoft Windows Media Center Extender Host, and then click Delete.

After you remove the certificate, uninstall the Extender, and then restart Extender Setup.

Solution 2: Restart the Network List Service

To restart the Network List Service, follow these steps:

  1. Click Start, type services.msc in the Start Search box, and then press Enter. If you are prompted for an administrator password or for confirmation, type the password, or click Continue.
  2. In the list of services, verify that “Started” appears under Status and that “Automatic” appears under Startup Type for Network List Service.
  3. If you have to modify the settings for the service, double-click the service, make the adjustment, and then click OK.
  4. Restart Extender Setup.

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