The easiest way is to use RAIDar to find it and press the "Admin Page" button, If you know the IP address of the NAS, you can just open a browser and go to https://ip-address-goes-here/admin. While https://nas-name-goes-here/admin should also work, sometimes it doesn't. Of course, you use the real IP address or name.
When you get the logon prompt, enter user name "admin" and the password you gave when you set it up (or "password" if you never changed it).
