Hello. My name is***** to JustAnswer. I'm reviewing your question now, and will post back with your reply momentarily.
Are you referring to a router from xfinity or the comcast/email password?
Please leave a detailed reply of what you are trying to change to continue.
To get started, I need to know what type of computer you are using, a Windows XP, Vista, Windows 7, Windows 8, Windows 10 or a Mac.If its a Mac, please check the OSX version as follows, Click the apple sign at the top left of your screen, then click about this mac. And then where it says version, send that to me as a reply.