On the web interface of the Gateway, you can view events and send diagnostic logs. When you connect to the Gateway interface, you will see the following screen:
On Advanced setting page you will see this screen:
Check logs like on next picture, save and reboot Gateway:
Next time when Gateway goes out or experience the troubles in work connect to interface and download diagnostics logs.
IMPORTANT: Do not change name of file you have downloaded otherwise we won't be able to read it.
This will enable us to understand Gateway problem and resolve it ASAP.