If Xfinity Wi-Fi is not working despite trying these fixes, call Xfinity customer support by dialing 1-800-Xfinity (1-800-934-6489). Alternatively, you can chat online with Xfinity Assistant.

Comcast now counts more than 7.8 million mobile lines, or 12% penetration of its residential broadband customer base, giving it a "long runway ahead." Comcast launched Xfinity Mobile in 2017 ...

We've tested and reviewed products since 1936. Read CR's review of the Xfinity Mobile cell phone service to find out if it's worth it.

If Xfinity Wi-Fi is not working despite trying these fixes, call Xfinity customer support by dialing 1-800-Xfinity (1-800-934-6489). Alternatively, you can chat online with Xfinity Assistant.

Comcast now counts more than 7.8 million mobile lines, or 12% penetration of its residential broadband customer base, giving it a "long runway ahead." ...