Hard to say. When it stops responding to one client, can other clients ping it, or send or recieve data?
I have the same problem.
It's absolutely misunderstable for me, that I ididn't find any answer on it!
I think this problem have all people using WinXP & SS4200-E ... I tried to play MP3s placed on storage from 3 various computers and the result was always the same !!! After 8-12 minutes playing stoped and network drive connection crashed.
I have the same problem... Have you figured out a solution?
It'd be hard to, without more details; especially trying from other computers and OSes.