1. Open the device Settings, go to Wi-Fi ( Connections ) and connect the device to the Wi-Fi you want to use.
2. Open the GenTech filter application, press on the 3 lines from the upper left corner.
3. Tap Public WiFi option which should redirect you to the LogIn page of the Wi-Fi.
4. If the Wi-Fi is not working, Open the device settings, go to the Wi-Fi option and tap on the the wifi you want to use.
5. Tap Forget Wi-fi and then re-connect the device to it.