Let's try this in the Computer Help forum?
I have a wireless UPnP device on my home network, and it stopped accessing media from my main PC's (Vista Home Premium 32 Bit) WMP all of a sudden. So, I checked Media Sharing in the Network and Sharing Center, and I found that it had been turned "Off". When I click "Change", it opens up the WMP Media Sharing window, but the UPnP device is set to share media, and the "Allow" button is greyed out. Clicking "Ok" at this point only closes the window, and takes me back to square one (Network and Sharing Center).
I Googled this issue, and found that many people had similar issues with XBox360. However, there was no definite solution. Can any one please help me with this problem?
Windows Vista Home Premium 32Bit (SP1)
AMD Athlon 64 Dual Core 3800+