Internet connection problems
If the vehicle loses its Internet connection, you can try the following.
Switching cellular data on and off
If the vehicle's Internet connection suddenly and inexplicably disappears, it may help to switch cellular data on and off.
Go to App view 
and then open settings 
.
and then open settings .Select Network and Internet.
Switch Wi-Fi and Mobile data off and then on again to restart the connection.
Restarting the system
Restart the system by holding down the home button for 20 seconds.