Connect server doent do anthing, please help

Unity Engine
1

Hi, i am trying to implement the networking example and there is a script named Connect GUI,
it includes this

//DontDestroyOnLoad(this);
var remoteIP = "127.0.0.1";
var remotePort = 25001;
var listenPort = 25000;
var useNAT = false;

function Awake() 
{
    if (FindObjectOfType(ConnectGuiMasterServer))
        this.enabled = false;
}

function OnGUI ()
{
    GUILayout.Space(10);

    GUILayout.BeginHorizontal();
    GUILayout.Space(10);
    if (Network.peerType == NetworkPeerType.Disconnected)
    {
        GUILayout.BeginVertical();
        if (GUILayout.Button ("Connect"))
        {
            Network.useNat = useNAT;
            Network.Connect(remoteIP, remotePort);
        }
        if (GUILayout.Button ("Start Server"))
        {
            Network.useNat = useNAT;
            Network.InitializeServer(32, listenPort);
            // Notify our objects that the level and the network is ready
            for (var go in FindObjectsOfType(GameObject))
                go.SendMessage("OnNetworkLoadedLevel", SendMessageOptions.DontRequireReceiver);        
        }
        GUILayout.EndVertical();
        remoteIP = GUILayout.TextField(remoteIP, GUILayout.MinWidth(100));
        remotePort = parseInt(GUILayout.TextField(remotePort.ToString()));
    }
    else
    {
        if (GUILayout.Button ("Disconnect"))
        {
            Network.Disconnect(200);
        }
    }
    
    GUILayout.FlexibleSpace();
    GUILayout.EndHorizontal();
}

function OnConnectedToServer() {
    // Notify our objects that the level and the network is ready
    for (var go in FindObjectsOfType(GameObject))
        go.SendMessage("OnNetworkLoadedLevel", SendMessageOptions.DontRequireReceiver);        
}

function OnDisconnectedFromServer () {
    if (this.enabled != false)
        Application.LoadLevel(Application.loadedLevel);
    else
        FindObjectOfType(NetworkLevelLoad).OnDisconnectedFromServer();
}

The start server is fine, when i press the button the level loads and i can play in it,
however when i click the connect button (i try to run 2 instances on 1 machine, i try this after creating a server) it does not do anything.
I am a newbie in this networking field, what could i be missing? thank you

2 
Application.runInBackground = true;

add this line to the awake() of your script. you can also change the setting in the player settings
edit/project settings/Resolution and presentation/run in background