Old networks can hobble IoT, even in tech paradise

IoT isn’t all brand-new, cutting-edge technology. In fact, some of it’s already suffering through painful upgrade cycles.
A case in point is the system that tells transit passengers in the tech hub of San Francisco when the next train or bus will arrive. The NextMuni system, based on the third-party platform NextBus, recently began sending out wildly inaccurate forecasts on many lines.
Why? Because most trains and buses had been communicating with NextMuni over AT&T’s 2G n