Why my server side actionscript for FMS is not working as expected ?

vid2.asc:

application.onAppStart = function()
{
  trace("The Broadcast has begun!");
};

application.onConnect = function(client,parameters)
{
  application.acceptConnection(client);
  trace(" has been accepted");
}

application.onDisconnect = function(client)
{
  trace(" has left.");
}

But in the admin console:

Unloaded application instance vid2/recordings
The Broadcast has begun!
Unloaded application instance vid2/recordings
The Broadcast has begun!
Unloaded application instance vid2/recordings

Why is onConnect and onDisconnect event not activated on server side at all(the client side script connects by nc.connect and is functioning well)?