NetworkLobbyManager is causing bugs whereas simple NetworkManager works fine

Hi everybody !
I have a problem that broke my mind.
I'm creating a very simple FPS multiplayer game to learn UNet.
Everything works fine but I tried to implement the NetworkLobbyManager example.
I test it. So, I create a lobby and run the game for 1 player : me.
I have no error but the first Rpc Method is not working at all.
What I don't understand, is that this method works fine with the simple NetworkManager.

Here is my code

Code (CSharp):

1. void Start()
2. {
3.        if(isLocalPlayer)
4.       {
5.              Setup();
6.       }
7. }
8.  
9. void Setup()
10. {
11.            CmdBroadCastNewPlayerSetup();
12. }
13. [Command]
14. void CmdBroadCastNewPlayerSetup()
15. {
16.        RpcSetup();
17. }
18. [ClientRpc]
19. void RpcSetup()
20. {
21.      Debug.Log("Start");
22. }

This code works with NetworkManager but not with the NetworkLobbyExample

Edit : If I put a Debug.Log in the Command, it works even with the NetworkLobbyManager

 

Okay guys I have news.
I tried to call my setup method by pressing a key and the Rpc method is working.
I think that when the Start method is call, NetworkLobbyManager isn't ready to work with RPCs.
I'm going to try to call that Setup method when the NetworkLobbyManager is ready