title: oracle EM no display
body: <p>I am trying to load oracle 12c EM in chrome and IE but I get:</p>
  
  <p>"This webpage is not available" or "This page can't be displayed"</p>
  
  <p>I can not browse it even from the server machine.</p>
  
  <p>I have tested connection through SQL developer and it works.</p>
  
  <p>I can ping the server and the database and listener are already started.</p>
  
  <p>Any ideas what might be the problem?</p>