Windows authentication does not work

Question

I am trying to setup Windows authentication in my .NET 4.0 MVC3 web application, so the intranet users in the company can log in without being prompted.

In web.confi

Answer 1

I googled a bit more and found this: http://forums.iis.net/t/1167087.aspx. Rebooting the server indeed solved the problem. The sad thing is that we still do not know what was causing it...