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.
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Before you buy a Wi-Fi extender, try this
Turn a spare router into a Wi-Fi repeater or access point to boost weak internet areas in your home Reviewed by Lisa Mildon You can use an old router to make your Wi-Fi reach more places in your home.
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