[SOLVED] Cannot connect NAS

[pagandan]

Use sudo to run the mount command

Thanks. This gives slightly more detailed error messages (I am also using the --verbose flag).  Now when I try to use any 'vers' lower than 3.1.1 I get an 'Operation not supported'. When I do use 'vers=3.1.1' I get permission denied. 

I am now trying all combinations of the 'sec' flag as well to see if there if I need to define a specific security protocol. I am also just stepping through the cifs-utils manual to see if I can see any other options that might help.