How to Enable SMB2 on ReadyNAS Duo running RAIDiator 4.1.16

Well, the simplest approach is to just enable the SMB1 client in the PC (or alternatively install the NFS client in the PC and enable it in the NAS).  In my opinion the security risks on a home network are small (though of course others might have different views on that).

There is a way to enable SMB2 in your Duo if you go in with ssh and set an experimental flag in the samba configuration.  Since it was an early implementation it might not be completely stable and might not perform well.  You might also need to re-set this flag from time to time, since the ReadyNAS application will re-write the configuration files when you add shares, etc.

This link says what to do (though it was written to a poster using 4.2 firmware, it also applies to 4.1): https://community.netgear.com/t5/Using-your-ReadyNAS-in-Business/Enable-SMB-2-on-ReadyNas-x86-v4-2-31/m-p/1455830#M139865