One minute your wireless Internet is working fine. The next minute, it takes an infuriatingly slow five seconds to load a single Web page. You paid for the fastest Internet speed available but during these all-too-frequent times, it seems like the connection barely works at all.
“Most people think it’s a mystery,” said Aleksandar Kuzmanovic, associate professor of electrical engineering and computer science at Northwestern University’s McCormick School of Engineering. “They get upset at their routers. But what’s really happening is that your neighbor is watching Netflix.”