I rus PS3MS from always-on PC.
It's set to go to sleep in 30 minutes.
I comes so that in 30 min it tries to go to sleep, I see error 80710092 on PS3, playback pauses, then (in about 3 sec) PC wakes and playback resumes.
So, when serving files, PS3MS lets PC go to sleep mode.
Think it's easy to fix, many programs have an option "prevent PC sleep".
Thanks in advance (and once again for a great program).