Before you blame your Wi-Fi, check your walls. With the right adapters, an existing wired connection can make boosting internet speed surprisingly easy.

Comcast Rolls Out Free Xfinity Speed Boost: Here's What's on Tap for Your Plan Some speed increases are more of an incremental boost that may be hard to notice, but it’s a free perk that could give ...

Xfinity Mobile’s WiFi PowerBoost lets your phone access Wi-Fi speeds in excess of the internet plan you’re paying for. So far it’s supported iPhones and Samsung Galaxy flagships and mid-rangers, but ...