I recently upgraded my routers and now my server can't detect the PS3. All of the settings are the same, aside from the server being on a Wireless N network.
Here is a breakdown of the configuration:
PSM PC connected to WZR-600DHP router with community DD-WRT Firmware set up as client bridge.
CFW router wirelessly connected to other WZR-600DHP with Stock Buffalo FW which is connected to the modem and acting as DHCP server.
PS3 connected to SFW router via Ethernet
My old setup was the same, except the PS3 was connected to the client bridge router and the server and modem were connected to the DHCP router. Both of these routers were Linksys WRT54g's, the stock one was a GL and the regular 54g on community DD-WRT.
I've gone over all of the settings, reset routers, made sure the firewall isn't blocking any programs, searched the forums, searched google. I set the PS3's MAC address to always have a static IP address, even though the PS3 is configured with that static IP address anyway. I can ping the PS3 from my server.
At this point, I have no idea what else to check, and I can't really go back to the Linksys routers because the throughput wasn't working out for my setup anymore. If anyone has any ideas, I will try just about anything at this point.