Regrettably I don't know of any protocols that possess the appropriate temporal aspect to let me record all the settings and changes made before things got screwed up.
The NAS is connected via Ethernet to the same switch as the Windows machine. (The NAS doesn't connect to wifi.)
I have no other active Windows boxes, and I'm not faffing around finding and swapping the harddrive I took out of my netbook since I'm approximately 5000% certain the NAS is correctly configured and the issue is with this Windows instance.