Networked HDs (other than Time Capsule) for Time Machine?

I'm trying to use a Seagate Central hooked up to my bell fibe router with Time Machine.



Everything is connected fine. Time Machine can see it, but I get "Error 17" when I try to have time machine back it up.



Any suggestions?



Should I just get a Time Capsule for this? I'm trying to avoid dropping $400 for a 3TB drive. Thoughts?

via ehMac.ca http://www.ehmac.ca/showthread.php?t=113330&goto=newpost