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.

Comcast Xfinity customers are experiencing faster internet speeds as of last week at no extra charge as the Philadelphia-based telecom giant rolled out an automatic upgrade. The move represents the ...

Xfinity fiber-powered internet results in 99.9% network reliability. Combined with low-lag technology and unlimited data, it delivers consistent performance even during peak household usage.

Xfinity vs. Spectrum: Which is better for your home? Xfinity and Spectrum are the biggest cable internet providers in the country. Each ISP is available to over 100 million Americans -- with a ...