Xfinity will let you rent a modem when you sign up for its Internet service, but you do have the option of using a third-party modem instead. Here's how.

The white blinking light could occur if you haven't activated your Xfinity router device. Before proceeding to the steps ...

A Wi-Fi hotspot for public and private use ... it does not make a point of telling everyone that it is the customers' equipment providing all this service. Nevertheless, Xfinity cable service ...