When I was referring to 'why use a NAS', I was assuming it was some proprietary system, wd/hp whatever. I have a window media server, but the 2012 version of windows server therein is being de-emphasised by M$. Realising that, I bought a cheap w10 single board PC with usb3, and a number of usb external drives, as a home-brew NAS. It runs headless, but it is easier to rdc via an android phone, cf a w10 pc! All files are in ntfs format, mirrored, etc, and if that, or any pc on the network, fails, I can more or less immediately get at the data via another pc. I run Octopi, to remotely control a printer - that needed a fixed ip address, assigned in the router, as the name did not always work. Of course, it may be something to do with the number of defunct hostfiles I've scattered around the system, with names of computers that no longer exist. As you are finding, windows networking can be 'interesting'. The history of their passwords is more interesting - some widows versions automatically capitalising words, some requiring special characters, etc. M$ probably owe me ten years of my life...