We had a buffalo NAS box for backup at work, until it died and we had to replace it with a snazzy Netgear one. The buffalo drive lasted about 8 years, the Netgear box I'd happily throw in a skip.
Anyway, it depends on your setting I'm sure - you'll always need a password to access it's settings etc, but you can have it allow access without needing a password. I used the Buffalo NAS for user backups, so just having a direct route with no password made sense, just have a folder for each user and give them access to it, or give everyone access to it, whatever is required. It might just be that the NAS box knows your an admin user, or maybe it only relies on strict security if it's part of a domain.
Anyway, I would suggest just making a root folder and setting yourself permissions for it, that way you can set aside a public folder for things like videos you might want to access on a console, or your music collection, stuff you might want to access from anywhere on your network.

I got a fever, and the only prescription, is more memes.
