You can check your app connection to the servers and internet by clicking on the cloud icon at the top of your app:
If your app is connected, the pop-up will appear like this:
If your app is not connected to wi-fi then the cloud icon will change, and the pop up will appear like this:
If there is a service disruption then the cloud icon will change, and the error message will appear like this:
Can my app be used offline/ without connectivity?