If you want to give the keyring another try, there is a way to reset it.

In your home folder, there is a hidden folder named ./gnome2 (or just./gnome). To see hidden files you need to enable it, View-->Show Hidden Files. Inside , there is a keyrings folder. Delete the contents of this folder. It should be called "login.keyring" or "default.keyring". Then log out and back in (or reboot), it will then ask to set the Keyring password, you can use the same password that you use for login, if you want. It now will save all passwords to the keyring, making them accessible with the password that you just entered. You only have to enter this password once, during the first wireless connection.