Can you post your wccf file?
Plus have a look at this link and deselect anything, WinRecuer Components and Services, that resembles what this guy mentioned in this article. I think you should probably focus especially on services that you may have disabled..
http://www.windowsnetworking.com/articles-tutorials/windows-server-2008/Setting-up-Wi-Fi-Authentication-Windows-Server-2008-Part1.html
I'm no expert on this, but just did a little search in google and found that article.
Hopefully it may help..