I see you are also running Win 2008, could be significant?
Gussi wrote:I'm having the same problem, I have to start PS3 before I start PMS or else it wont show up. If I start PS3 and then PMS it will show up no prob, but will disappear if I play a game or even scan for media devices (that's right, it'll disappear right away and wont come back). I'm wondering if it's my routers fault, if I go to Settings -> Internet Settings -> Internet Connection Test it will show UPnP as "Not available". However I didn't have this problem while using MediaTomb, so, not sure exactly what's wrong :/
If the PSM is already found, and I scan for media devices, it confirms "1 media server found" and I don't lose the device. Haven't played any games yet since I got it running, so don't know if that'll cause a problem.
I also see "UPnP not available" on the Internet Connection Test; but UPnP MUST be working, otherwise the server wouldn't be showing up at all. So this could be a PS3 incompatibility with particular routers or protocols. My router is a cheapish Sweex, from which I run a 4-port Linksys hub to downstairs, and the PS3 is cabled into that; although if I run the PS3 just on wireless, I still get "UPnP not available" - so it doesn't seem like that's anything to do with the hub.
Having to restart the software all the time isn't an option - the media is there for other people in my house as well, and I'm not giving them the Admin password to the server!

Is there anything I can do to help track this problem down?