Forget and Reconnect
Sometimes, simply forgetting the Wi-Fi network on your iPhone and then reconnecting will resolve connectivity issues. Here’s how to forget a Wi-Fi network:
- Open the Settings app on your iPhone.
- Select Wi-Fi.
- Choose the info (i) button to the right of the Wi-Fi network you want to forget.
- Select Forget This Network.
If that doesn’t work and you’ve tried everything else, you can also try resetting your network settings entirely by opening the Settings app and selecting General > Transfer or Reset Phone > Reset > Reset Network Settings. This won’t affect any of your data, but it will remove ALL saved Wi-Fi networks from your iPhone, so be sure you have any passwords you need before you do this.