Puppet users - Mar 2014 - Windows 2012 R2 out-of-sync / not checking in?

I'm standing up a Foreman front end for open source Puppet server. Every 
Linux box seems to be working and checking in just fine. The problem child 
is Windows 2012 R2. I can manually trigger an update with:

 puppet agent --test

However, if I just let it sit there, it'll never check back in. Any clues 
as to what's going on? I'm using Puppet 3.4.3 on the agent and server. 
Thanks. Here's the imgur link. 

http://imgur.com/aUutqdt

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