My QNAP 464 NAS and my SONOS amps are on the same network layer, and my PC and other computers can access the NAS's music folder.

However, when I add the NAS path (Manage/Setting/Music Library/ → ADD Networked device) and then I select music path and NAS user/password, SONOS cannot find the file, SONOS shows the message:” ‘//NAS/Media/Music’ is no longer available….”, although I still play music from this NAS on my PC.

I have checked SMB v2 and v3 of NAS, they are all 

Please help me connect my SONOS system (7 sonos amp and 1 port) to the NAS, I would be very grateful.

my email: dungphant@gmail.com

enable.