Here are some steps to investigate:
Check that your mobile device has the latest version of its operating system.
Verify that you are connected to a Wi-Fi network.
Check that your Wi-Fi router is turned on and connected to the internet.
Restart your Wi-Fi router and mobile device.
Check for network outages in your area by contacting your Internet provider.
Attempt to connect to another Wi-Fi network.
Reset your network settings on your mobile device.
