Tried a restart, same question. Tried to add another network connection to get my net working, but still NM wants to know the default keyring password. I want that too :) Finally I tried my initial account password used on install (which I changed a few days later), that was it!
That means there was a problem with your installation. Changing the user's password is supposed to change the default GNOME keyring password to match as well.
in /etc/pam.d/passwd: -password optional pam_gnome_keyring.so
So, how did you change your password?
as root: passwd user
So why not ask (or hint about) your account password, rather than default keyring password?
Could this behaviour be changed to: when a keyring needs to be setup, prompt user with a dialog explaining what a keyring is and ask for a password.
Huh.