A. 1. Check Wi-Fi settings: Ensure that your Wi-Fi is turned on and that you are connected to the correct network. Go to 'Settings' > 'Wi-Fi' and verify your connection. 2. Restart the router: Unplug your router, wait for 30 seconds, and plug it back in. This can help resolve connectivity issues. 3. Forget and reconnect to the Wi-Fi: In the Wi-Fi settings, tap on your network, select 'Forget', and then reconnect by entering the password again.