Remote connection weirdness!! Client/server

I just installed a server on my network (it runs linux), and I can access it from my family computer (running windows). But when I try to ping the family computer from the server, it says it can't find it. I ping the server and it comes up fine.

 

Wait, maybe that was a bit unclear, the server seems to think that the family computer doesn't exist, however I can connect perfectly from the family computer to the server.