Endpoint Protection status is Unknown for another domain

I have a Windows 2012 server running SCCM 2012 SP1 that I use for Windows Updates and Endpoint Protection.

I have two domains that get the Endpoint Protection updates.  On the domain that my SCCM server is on, I can see the client status just fine.  However, on the second domain, all client status items show up as "Unknown."

Is there a way that I can get the client status on the second domain to show up?

Thanks

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