I have an iPod Touch that I upgraded to iOS 4 (but this an issue that also existed in iOS 3.1). When I travel, and I join a WiFi networks (e.g. hotel, etc), I don't always remember to forget the network before I leave.
iPod touch: Wi-Fi Information and Settings tells you to "Forget this Network" if you can choose it from the list of
Wi-Fi Networks. However, when the network is not in range, you cannot select it to forget it.
Is there either a way I am not seeing in iOS to do this, or a third party application I can download? Does the fact I have extra WiFi networks in the list affect the performance of my device when it is trying to join known networks?
Update: I now have doubts a third party app exsits based on that Apple Drops Wi-Fi Sniffers from iPhone App Store reports "sniffers were dropped because they use a private framework, hooks in the operating system that are not documented nor allowed for third-party developers to use."