title: Why has Visual Studio 2015 and IIS Express has stopped responding to any HTTP requests?
body: <p>I've been developing a Web Forms ASP.net web application in Visual Studio 2013 without any incident for some time now, but recently I attempted to upgrade to Visual Studio 2015 and now every time I launch the project I get stuck waiting for a request.  This isn't a server response (like 500 or 404) it just never responds.  To try and isolate this I've uninstalled every copy of Visual Studio (I had 2012, 2013 and 2015 installed), deleted the <code>%userprofile%\DocumentsIISExpress</code> folder, reinstalled just VS 2015, and created a completely empty web project (with just the default Web Forms boilerplate).  Here is a screen shot of what I am experiencing:</p>
  
  <p><a href="https://i.stack.imgur.com/aRHpR.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/aRHpR.png" alt="enter image description here"></a></p>