Wi-Fi problems can strike anyone at any time, no matter how much networking experience you have. But if you’ve not come across a particular Wi-Fi issue before, there’s no harm in not knowing how to fix it. All you need ...

New technologies often are introduced through spectacle: Think of the historic demonstrations carried out by Faraday, Edison, Morse, and Bell, or, more recently, by Steve Jobs onstage in his black turtleneck at Macworld 2007, holding the first iPhone. Indeed, hyped-up ...