I have experienced the same problem in that I had 3 shares which were all accessible via the media Server but after an issue with DTCP-IP ("While firmware updating, Media server update cannot be updated completly. Please click update DTCP-IP after establishing internet connection") I can only select one. I have created a generic 'Media' share and moved all my docs into this share under different folders. I now see the media server but not any of the documents within the share. I have refreshed, restarted, reset etc but to no avail. Something has happened in the past few months that has changed things, but I have not performed any updates.
Is this related to the DTCP-IP issue?
Any assistance would be appreciated as at the moment I can not access any documents via the media server.