Instructions
Unplug the router and reconnect it after 30 seconds.
Verify the PS3 has the media server enabled. Scroll to the "Settings" icon and select "Network Settings." Select "Media Server Connection." Select "Enable."
Verify that the media server program you're using is allowing access to the PS3. If you're using Windows Media Player as recommended, click the "Stream" icon and click "More Streaming Options." Click the drop-down menu next to "Unknown Device" and click "Allow."