FXR WiFi fix and rescue 18.104.22.168
the author of this app says:
FXR is a very light and simple yet powerful rescue application which can fix a malfunctioned or problematic WiFi.
It just might succeed where other apps have failed.
Having a Wi-Fi problem?
Your Wi-Fi stopped working?
If you are about to do a factory reset - try this application first!
No promises made, no guaranties, but it has been tested on some devices such as the Samsung Galaxy S and Motorola Milestone with a malfunctioned WiFi which otherwise required factory reset and fixed the problem.
Please note - if your hardware is broken there isn't any software which can fix that. This app solves problems in Android OS which cause the Wi-Fi to stop working properly.
It is recommended installing this app now that your Wi-Fi does work so it will be available if Wi-Fi stopped working and your 3G is expensive.
Fixing wifi is just the first phase - in the near future we plan to add GPS and bluetooth fixing.