Simple Networking code does not work

Hey, i've got this code from a tutorial on youtube, and i dont know why it does not work. When i've got a server in the editor, and i do connect as client in the exe, nothing happens..

     public string IP ="86.84.110.56";
     public int Port =53486;
     
     void OnGUI()
     {
         if(Network.peerType == NetworkPeerType.Disconnected)
         {    
             if(GUI.Button(new Rect(100,100,100,25),"Start Client."))
             {
                 Network.Connect(IP,Port);
             }
             if(GUI.Button(new Rect(100,125,100,25),"Start Server."))
             {
                 Network.InitializeServer(10,Port);
         }        
     }
         else
         {
             if(Network.peerType == NetworkPeerType.Client)
             {
             GUI.Label(new Rect(100,100,100,25),"Client.");
             if(GUI.Button(new Rect(100,125,100,25),"Logout."))
                 {
                 Network.Disconnect(250);
                 }
             }
             if(Network.peerType == NetworkPeerType.Server)
             {
             GUI.Label(new Rect(100,100,100,25),"Server.");
             GUI.Label(new Rect(100,125,100,25),"Connections: "+Network.connections.Length);
             
             if(GUI.Button(new Rect(100,150,100,25),"Logout."))
                 {
                 Network.Disconnect(250);
                 }            
             }
         }
     }
 }