In short, for some reason, if your iPhone connects to a wifi network named “%p%s%s%s%s%n,” the device’s wifi will cease to function.

In each case, the network name alone broke their iPhone’s wifi features and prevented them from connecting to other networks.

Connecting to the so-named wifi network on Android likewise has no effect; the bug seems to be rooted in either the iOS operating system or the iPhone’s hardware, but no one has yet to discern why this particular SSID breaks the iPhone’s wifi features.

Obviously, avoid connecting to networks or name your home wifi “%p%s%s%s%s%n” and warn others if you notice public wifi spots using that particular SSID.