Oracle Enterprise Manager 11g dbconsole "Internet Explorer cannot display the webpage"
This is broken due to this patch: http://technet.microsoft.com/en-us/security/advisory/2661254

As per this link http://trinidba.wordpress.com/2012/10/11/internet-explorer-cannot-display-the-webpage-when-connecting-to-oem/ you can fix it with Oracle Doc ID Doc ID 1489557.1