The hub has been disconnected from a local network, i.e. the hub doesn’t have either WI-FI or Ethernet connection.
This event shows that the hub is not able to connect to any camera until it will be re-connected to a local network again. When hub will be re-connected to a local network, hub_connected_to_local_network will be emitted.
If the hub is not connected to a local network when the plugin subscribes for Camera events using subscribe, this event will be immediately emitted to the plugin.