UPDATE: PS3 Media Server has been superseded by Universal Media Server (from the same developer), which has the same UI and hence the same instructions as below.
So you just installed PS3 Media Server (PS3MS), have your DLNA clients up and running, but PS3MS can’t find them. All the restarting, rebooting, and power cycling in the world isn’t helping, so what now?
PS3 Media Server selects a single network interface on your machine on which to operate. Unfortunately, it can select one that isn’t active or even connected to anything, e.g. one belonging to a virtual machine on your PC. Here’s how to check for and fix this problem on Window 8.1:
- In the PS3MS window, click on the Logs tab.
- Look for a line with the string “Created socket:” in it. If the log is too long to look for this manually, copy it into a text editor and CTRL + F for the string there.
- Right-click on the network interface icon in the Windows system tray.
- Click Open Network and Sharing Center.
- Under View your basic network information and setup connections and View your active networks, look for the network with Access type: Internet.
- Click the network name to the right of Connections: for the network from Step 5.
- Click Details… in the window that pops up.
- Note the IP address to the right of IPv4 Address in the Network Connection Details window that pops up.
- For PS3MS to work, the IP address in that line from Step 2 should match the physical network interface your PC is using to connect to the LAN your DLNA client devices are on (usually the IP address in Step 8). If it doesn’t, click the General Configuration tab in PS3MS.
- Under Network settings (advanced) in the Force networking on intereface: drop down menu, select the networking interface fitting the description in Step 5 above.
- In the Force IP of the server: field, enter the your PC’s LAN IP address corresponding the interface in Step 4.
- Click Save.
- Click Quit.
- Relaunch PS3MS. It should be able to see your DLNA clients now.
/jdrch 
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