My iphone will not connect to my Wi-Fi? - 1

All of a sudden my iphone won't connect to my home Wi-Fi, I'm having to use 3g/4g! My ipad is connected with the internet fine so it's not my internet that's the problem, I don't understand why my phone is suddenly like this?

I've tried restarting the device, resetting all network settings, forgetting the network and even typing in my Wi-Fi on other… Nothing is working! Could water damage do this? But everything else works fine on it… Please please help me

Reboot your router by unplugging it from power and plugging it back in. Then in your phone go to Settings-General-Reset-Reset Network Settings. This will wipe out the network on your phone so you will have to rejoin wi-fi with your wi-fi password in Settings-Wi-Fi.