How to disable an alert when a hub loses connection with the server?

When a hub loses the connection with the server, Ajax apps can notify the users using a standard push-notification sound or a siren sound (enabled by default).

To disable the siren sound when hub loses the connection with the server in the Ajax app:

1. Go to Service settings of the hub (Device → Hub → Settings → Service).

2. Select menu item Server Connection.

3. Disable the option Get notified of server connection loss without alarm.