Running Windows Authentication with IIS Express

August 6, 2015 at 10:18 AMMadestro

You may run into a situation where you have configured your site to run Windows authentication but you get an authentication error when you try to browse it during a debug session.

To fix this issue, you need to edit the Application Host file for IIS and enable Windows authentication. You can find the file here:

\My Documents\IISExpress\config\applicationhost.config

Find the <security> section inside the <system.webServer> node and enable Windows authentication as follows:

      <windowsAuthentication enabled="true" />

And that's all there is to it. :-)

Posted in: ASP.NET MVC | Visual Studio | Web Development