You must change your password on each individual system. A dialog box will appear with several buttons. You will be asked once for your old password, then twice for your new password. However, you only really need to enter it once into a dialing script when you first install the Internet access software. We don't have the ability to peek at what your password is if you've changed it from the original setting.
Good passwords are, by definition, hard for others to guess.
This provides nonsense words that are usually pronounceable, and thus easily remembered. Choose two short words and concatenate them together with a number or nonsense letter between them.