We are unable to change your password because there is not an eligible verified mobile number or email on file; you will need the Primary account holder to make the change for you. Once you've reset, please add a mobile number or email address to your profile so we can better assist you with future password resets and troubleshooting.

If you are still unable to reset your password, please call us at 1-800-XFINITY.

Of course, there is ZERO help on the 1-800 line. 

I am the primary account holder (with a different Comcast user name) and I can log on to that account, but there's no email attached to the sign on username. {Edit Language}