My wife just picked up a PS3 and so I started looking around at the options. I noticed it has the option to search for media servers so I have been unsuccessfully trying to get it to connect to my NAS. I've had the DNS-323 for a while and it's been great but no setting I have tried will get the PS3 to pick it up at all. I've seen lots of threads about problems with streaming or file size/name issues but I can't seem to find anyone else who's PS3 refuses to acknowledge that the NAS is on the network. They are both cabled into an unmanaged switch and then into a Linksys WRT54G. I upgraded firmware on my PS3, NAS (to 1.07) and the router. I enabled UPnP on both the NAS and the router. Oddly, my router is being seen by my PCs but not the NAS (as a UPnP networked device) but I can access the NAS as normal otherwise, so I'm not sure if I am just not setting it correctly or if I should try defaulting the NAS and reconfiguring it. It is my primary storage and largely is not backed up otherwise, so I can't chance wiping the data.