If your Wi-Fi signal is struggling to reach every corner of your home, a signal booster — also known as a Wi-Fi extender — might be the fix you need. Whether you're dealing with annoying dead zones, ...

To anyone with a slow, spotty internet connection, WiFi range extenders sound like a bargain. You buy one for as little as $20, plug it into an outlet, and your problem is solved. Or so the marketing ...