I’m trying to access my NAS filer (nas4free) with my SONOS system. I can select the correct path via the Windows 10 Sonos Controller from the explorer [\\nas4free\media], it then asks for credentials and I provide the CORRECT credentials (how do I know that they are correct? because I can access the very same share from the very same computer (and all other mobile/stationary systems in my home with these credentials). Only if I try via the SONOS app to use the credentials for the share, it tells me:
Access to this share has been denied, please check if path and credentials are correct.
The share is a samba share (CIFS) and the server setting is set to default meaning, it will offer NT1 , SMB2 and SMB3 protocols and will autonegotiate the protocol with the requester.