This Forum Beta is ONLY for registered owners of D-Link products in the USA for which we have created boards at this time.
The passwd and users are stored on the server, not on your pc (I think it's windows from your message) computer. The server has linux as the OS. If you've never used linux, I'd suggest checking the manual how to reset the NAS to factory defaults. Don't use funplug or other low level stuff, unless It's not a problem if your data is lost. If you don't care for the data, than try. I don't think if the NAS can be bricked, or at least it is quite hard. In he worst case you have to format the HDD-s.funplug: just google. It's a small "package" that enables you to get a command line on the server. And a lot more.