title: Troubleshooting Master Data Services (MDS) Permission Authorization
body: <p>I have been testing Master Data Services for future project. A few days ago MDS stopped authenticating with clients without any known reason. I am using SQL SERVER 2012 BI edition.</p>
  
  <p>In general, I can access MDS page on the server using <code>http://localhosts/mds</code>; however, if I try to access <code>http://servername/mds</code> from either server or client I get an error message :</p>
  
  <p>ERR_INVALID_AUTH_CREDENTIALS on Chrome or asked for credentials on IE. I cannot authenticate with my credentials. </p>
  
  <p>Please advise</p>