title: I can't connect to a new TFS server because Visual Studio won't let me supply new credentials
body: <p>I'm trying to connect to a new TFS server in Visual Studio 2015. I already have a local TFS server on my dev machine. When I attempt to add the new TFS server in the "Add Team Foundation Server" prompt it allows me to enter the URL, path and port number, but no credentials. Without credentials it can't connect to the server because it's supplying my local admin credentials instead of my active directory ID.</p>
  
  <p>I've tried Credential Manager in Control Panel but it is empty. I've tried clearing my internet explorer cache/passwords/everything. I've tried running Visual Studio with the /netonly switch and supplied my AD credentials. None of this has worked.</p>
  
  <p>How do I add a new TFS server to my list that I can connect to?</p>