For login failures, from Windows or networked devices, especially if you are running unRAID 6.3.0:   The Samba developers disabled the older form of authentication between devices.  This results in login failures when one of the devices only supports either the new form or the old form, but not both.  Here are 2 methods to resolve this, one re-enables the older form on unRAID, the other is an example of how to enable the newer form on the other networked device.  You should only need to do on