ReadyNAS Duo V2 (RND2000)

I have a new Windows 11 PC which I have connected to my existing network and can connect to my ReadyNAS Duo V2 (RND2000) OK. I store my iTunes Library on the NAS and it's working fine but I have to access my NAS to check the SMB settings because I'm having problems with the new Sonos S2 App accessing the NAS for my Music. I've downloaded Raidar 5.3.13 to the new PC but I can't access the software/Shares to see if it supports SMB v2 or v3. Can anyone help by explaining how I can solve the problem please?