I can also access the files on the nas by using the mydlink access app for android and by going to mydlink.com.
It seems the only thing I can't is log in to the web admin panel. Every time I try to log in it just says "You entered an incorrect login name or password.Please try again."
I have tried my set password before I upgraded the firmware, leaving it blank as this was the default when I bought it, admin, dlink, password, 123456. None of these work.