I'm having problems connecting to the em site (http://hostname:1158/em) after installing Oracle 11gR2 on a Windows Server 2008 R2 Server.
When I open the site in the browser I get the usual Certificate confirmation page, but usually one can just click "Continue anyway" and the EM console will open. No such luck this time.
I have tried running the "emctl status dbconsole" command which says the service is running an everything is hunky-dory. There is no problem connecting to the database with SQLPlus, so everything else seems fine. Just not OEM.
Any of you fine folks have any suggestion as to what might cause this particular problem?
Are you using Internet Explorer? There is a Microsoft Patch which forces IE to only work with 2048bit SSL certificates. Try using FireFox.
You could try this http://trinidba.wordpress.com/2012/10/11/internet-explorer-cannot-display-the-webpage-when-connecting-to-oem/