Ok, I'll try to be as specific and too the point as possible...
I just noticed that for some reason my shared music is not showing up to play through my Xbox 360. When I go to "Media > Select Music" my PC shows up correctly, but when I click it, then try and find some songs, albums, etc - it says No albums found.
Now on the PC end (Windows 7), when I check my media streaming options through my network, my Xbox 360 is allowed through, sharing up my PC is enabled. I even tried connecting with Windows Media Player open - there's an option above your playlist to "play to" and it shows my Xbox 360 and my songs in the playlist. But, when I it play, soon every single song gets an error "failed to retrieve media information from media server."
Please help, this is driving me insane! I have no idea why it's not working, it doesn't make any sense, as well as it has always worked, and I haven't changed any settings.