Can't access EAC - logging in leads to OWA2010 interface?

I just set up a new build of Exchange 2013 in an organization running an Exchange 2010 production environment. I set up the Mailbox role and Client Access roles on two separate new servers, both running Windows Server 2012. Everything seems to be running fine, up to the Exchange Admin Center login screen. But once I login, it takes me to a page that looks like OWA 2010 screen.   I certainly see no server maintenance roles, only "Manage My Organization" - which is what happens in OWA 2010.

Basically, I am comparing what I'm getting with this article:

http://social.technet.microsoft.com/wiki/contents/articles/18024.how-to-access-exchange-admin-center-in-exchange-server-2013.aspx

Everything goes fine up till Step 6.  Any idea what's going on?

----------- Ron E Biggs Network Administrator Entertainment Studios