how use windows authentication from an outside domain client machine
<p>I'm developing a web MVC 4 application with Visualstudio 2013 </p>

<p>I'm stuck in a issue, web application should use Windows Authentication in a intranet environment. Enabling the right options on IIS express it works fine . (web page shows the logged user)</p>

<p>the problems come when a client, that is not joined into the domain (like the developer machine), tries to use that web application. even if the client insert the right credentials into the popup, authentication keeps fail </p>

<p>Into the webconfig I have the ActiveDirectoryMembershipProvider an connectionstring set... maybe is not enough</p>

<p>so, what is the best practice / right configuration to allow this scenario?
any help is appreciated</p>