When i disconnect from LAN i can't create a room on Matchmaking

I made to can Play on LAN and Matchmaking, but when i make a room on LAN and i disconnect , i can't make a room on Matchmaking, and the same when i make a Matchmaking room, i can't make after that a LAN server.

How i can fix that?

Matchmaking Code:

Code (CSharp):

1.     private uint roomSize = 4;
2.     private string roomName;
3.  
4.     private NetworkManager networkManager;
5.  
6.     void Start()
7.     {
8.         networkManager = NetworkManager.singleton;
9.     }
10.  
11.     public void SetRoomName(string _name)
12.     {
13.         roomName = _name;
14.     }
15.  
16.     public void CreateRoom()
17.     {
18.         if (NetworkManager.singleton.matchMaker == null)
19.         {
20.             NetworkManager.singleton.StartMatchMaker();
21.         }
22.  
23.         if (roomName != "" && roomName != null)
24.         {
25.             networkManager.matchMaker.CreateMatch(roomName, roomSize, true, "", "", "", 0, 0, networkManager.OnMatchCreate);
26.         }
27.     }

LAN Server code:

Code (CSharp):

1.     public void StartupHost()
2.     {
3.         NetworkManager.singleton.StartHost();
4.     }
5.  
6.     public void JoinGame()
7.     {
8.         SetIpAddres();
9.         NetworkManager.singleton.StartClient();
10.     }
11.  
12.  
13.     private string ipAddres;
14.  
15.     public void SetIp(string _ip)
16.     {
17.         ipAddres = _ip;
18.     }
19.  
20.     void SetIpAddres()
21.     {
22.         if (ipAddres != "" && ipAddres != null)
23.         {
24.             NetworkManager.singleton.networkAddress = ipAddres;
25.         }
26.     }

P.S. I have and this, to disable / enable Matchmaking

Code (CSharp):

1.     void StartMatchMakerIfIsNull()
2.     {
3.         if (NetworkManager.singleton.matchMaker == null)
4.         {
5.             NetworkManager.singleton.StartMatchMaker();
6.         }
7.     }
8.  
9.     void StopMatchMakerIfIsNotNull()
10.     {
11.         if (NetworkManager.singleton.matchMaker != null)
12.         {
13.             NetworkManager.singleton.StopMatchMaker();
14.         }
15.     }