Several iPhone and iPad users have reported an issue in which Wi-Fi connection drops unexpectedly. Further users have reported their iOS devices have problems connecting to, or staying connected to Wi-Fi networks; which is causing iPhone/iPad to switch from Wi-Fi to cellular connection (3G or 4G). Please refer to the following tips to troubleshoot Wi-Fi1 issues you may experience while using your iOS devices; iPhone, iPad, or iPod touch. Test your Wi-Fi after each step before going on to the next step.
- Tap Settings > Wi-Fi and turn Wi-Fi off and then on again.
- Restart your iOS device
- Reboot your Router
- Update the Router
- Tap Settings > Wi-Fi and locate the wireless your Wi-FI, and then tap the blue arrow next to the network name and then tap Forget this Network. Try to connect to your desired Wi-Fi network again.
- Reset network settings by tapping Settings > General > Reset > Reset Network Settings.
- Try to change your Wi-fi Channel Settings on your router.