Invoked when a network connection is lost. Should resolve when the
network connection is re-established. NOTE: This method may be called
multiple times while the connection is down; its logic should handle
this scenario (e.g. only showing a dialog to the user once per outage).
Invoked when a network connection is lost. Should resolve when the network connection is re-established. NOTE: This method may be called multiple times while the connection is down; its logic should handle this scenario (e.g. only showing a dialog to the user once per outage).