If there is a firewall running on that server, either turn it off or open port 10000 to allow the RAWS client to communicate with the media server.
Also make sure that the RAWS agent is started on that server in question.
I'd be interested in hearing more of this issue. I'm currently running a 2003 based domain, but looking at upgrading my DC's to 2012 very soon. Although I woudln't be surprised if Symantec failed to properly test on a windows 2012 domain and there are still issues with their software.
they've made it quite clear, Enterprises just aren't supposed to want to upgrade to windows 2012 apparently.