If you use a third-party router/modem, refer to that device's instructions. How to view your default Xfinity Wi-Fi password ...

Renting a router from your internet provider is the easier option, but a little extra legwork will save you in the long run.

Cable giant Comcast unveiled the details around its highly anticipated wireless service, Xfinity Mobile, which promises to shake up the wireless market, executives said during a live webcast Thursday.