I also enabled the "Computer Browser" service.
From the metro screen go to Administrative Tools
Click on Services
Scroll to "Computer Browser"
Enable the service to run automatically,
You can install the connector and bypass joining the domain. I'm testing this now and it's working nicely.
http://social.technet.microsoft.com/Forums/en-US/winserveressentials/thread/aa40963c-7235-40f7-85f5-8f8d030a7c13
I got my 2713HM this weekend and so far it's great. It's a A00 built in Nov 2012. No cross-hatching or "wikipedia buzz" so far. I'm impressed, ordered last week at $579 from Dell.
I'm the same way, I use both now. My Movies on the server for content management, Media Browser for the WMC interface. I also use Media Center Master for get additional back drops and meta data now that My Movies locked theirs down.
Hopefully you find a solution that works that I can use too.