iirc some older NAS devices (i.e. older *nix OS) need SMBv1. I have WD MyBook and MyCloud and at least one of them needs SMB1 - so I have SMB1/CIFS enabled in Control Panel (_Client_ only). Any remote access is done via encrypted SSH tunnels. No-one has walked in through the front door */so far!
/* AndyD*/ /* <snip>
Don't enable SMB1 support. You might as well leave your front door open when you leave the house.
-- Alan Bourke alanpbourke (at) fastmail (dot) fm
[excessive quoting removed by server]