ReadyNAS NV+ lost shares access for Windows 10 PC

Thanks StephenB,

Problem solved but not sure what i have done to fix it!

I checked the file access rights as suggested and set all the shares to read/write with no names in the access fields ( host, read, write , groups) and checked the guest user access was disabled ( unticked). The advanced CIFS settings set to automatically set permissions for new files and folders to R/W for group and everyone. I also turned off Opportunistic locking as I wondered if Windows 10 could be unhappy about local caching of files. But with no difference. Windows gives the same error 'resource not available'.

The 'net use' command worked in that I could add the shares a network drives and could access the files ok using DOS commands, but Windows File Manager could not, although it reported the drives and their capacity correctly! Presumably the Windows apps were not getting correct information somehow, but lower levels were OK. I added two different shares with different user names and Windows didn't like that. 'Different user names to the same share resource are not permitted' type error came up, but adding the shares using the same login details for each one worked fine at the DOS level but still not at the Windows app level. 

So I decided to reboot the ReadyNAS and it now works fine! Not sure what has fixed it. Suspect that Windows and the ReadyNAS needed rebooting to resolve. 

I've made notes for the future of what to check.  Thank Goodness I had SSH access, as I wouldn't have stood a chance of sorting it out.

Now back to the original job of getting the backups sorted out!

Thanks again to all who responded and Happy New Year for 2023.

Paul .