Ok guys I’m new to this but here goes. Bought a new My Cloud and attached it to my router to be used as a NAS music server. First set up worked just fine all things appeared to be in place. After transferring my music library to the drive in explorer as a drag and drop it was available and useable to my SONOS. But after a reboot of the computer the unit shows up in the network file but does not open, nor can I map it as a network drive. It does open up like a web page with a GUI interface.
Changed computers (1st one was an old pc with Vista, 2nd one is running Widows 7) At first start up all was as it was in the beginning, but after a reboot it reverted back to the same problem.