I'm having no problems with my DSM-520 connecting to Windows 7/Windows Media Player 12. I can see and play all music.
However, when I try to open Music Playlists on the DSM-520, I receive the error message, "Unable to access this folder." After I acknowledge this error (hit [OK]), I get the same error message for everything that I do on the player, even the things I could do before I tried opening Music Playlists. This same scenario occurs if I try to open Folders also.
I have to restart the DSM-520 to get access back to the Music.
I can't figure it out. Every folder under my Windows 7 Music directory is set to "shareable."
Anyone else have this problem?