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Trying to add XBOX 360 as Windows Media Center Extender on Windows 7 Pro machine. I have completely disabled Windows firewall and wireless security, with no luck.

To troubleshoot, I have:

  • Disabled Windows Firewall completely
  • Disabled Wireless Authentication & Encryption
  • Same problem on multiple computers
  • Verified that I have no problems over a wired connection.

Here are some other factors:

  • Router/Access Point is Linksys Wireless-N Broadband Router WRT160N
  • Using latest version of AVG Free on computers. Have tried disabling resident shield.

Here is the error I am getting on my pc: alt text

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up vote 1 down vote accepted

Solved problem. I needed to go here and allow my xbox:

alt text

Then needed to check types of media that I wanted to share: alt text

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Please mark this as your accepted answer, so other users will know that this has been answered and accepted. – RSMoser Oct 10 '10 at 20:00

Based on my research and experience the "Configuration Error" problem occurs for a variety of reasons. Here are some of the common ones.

  1. Corrupt Media Center Certificate.
  2. Corrupt Default User Profile.

I solved the problem in my case by re-establishing the permissions for the Default user profile in c:\users\Default so that the administrative group had full permissions.

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