Once you’ve connected to a Wi-Fi network on your iPhone, iPod touch, or iPad, your device remembers its credentials and, for your convenience, connects automatically next time. However, this isn’t always helpful. Sometimes we connect to hotspots accidentally, and it’s frustrating when your device connects to a network you don’t want it to.
You can prevent this by “forgetting” the networks you’ve previously connected to. Once forgotten, your device will no longer connect automatically, and only when you tell it to. Here’s how to forget a Wi-Fi network.
