Question Game of different platforms do not work.

Hello, sorry for my english. Help!

The game from 2 devices android - android, windows - windows work properly. All objects spawn and are visible to everyone.

The game from 2 devices android - windows does not work. The server spawns its objects properly, but the client does not see them. The client will not spawn anything.
In which direction to look for a solution?

 

More info please.
What do you use for the networking?
To what IP/port are you connecting?

 

I use Netcode for GameObjects.
(using Unity.Netcode

Game starting on Host. Tried different devices.
(NetworkManager.Singleton.StartHost()

This is individual device IP/port, is'nt it?
For searching and connecting i use Relay and Lobby Unity Services.

 

Can you show the script used to host/connect?

 

The scene is loaded when 2 players connect. This happens all the time.
For quick search methods: FindMatch, CreateMatch.

Code (CSharp):

1. using System;
2. using System.Collections;
3. using System.Collections.Generic;
4. using System.Threading.Tasks;
5. using Unity.Netcode;
6. using Unity.Netcode.Transports.UTP;
7. using Unity.Services.Authentication;
8. using Unity.Services.Core;
9. using Unity.Services.Lobbies;
10. using Unity.Services.Lobbies.Models;
11. using Unity.Services.Relay;
12. using Unity.Services.Relay.Models;
13. using UnityEngine;
14. using UnityEngine.Events;
15.  
16. public class LobbyController : MonoBehaviour
17. {
18.     [SerializeField] private int _connectedClientsForStart = 2;
19.     private static LobbyController _instance;
20.     public static LobbyController Instance => _instance;
21.  
22.     private string _lobbyId;
23.  
24.     private RelayHostData _hostData;
25.     private RelayJoinData _joinData;
26.  
27.     private bool _authentificationSucceeded;
28.     // Setup events
29.  
30.     // Notify state update
31.     public UnityAction<string> UpdateState;
32.     // Notify Match found
33.     public UnityAction MatchFound;
34.     public UnityAction<string> PrivateLobbyCreated;
35.  
36.     private void Awake()
37.     {
38.         if (_instance is null) { _instance = this;  }
39.         else {Destroy(this); }
40.     }
41.  
42.     async void Start()
43.     {
44.         await UnityServices.InitializeAsync();
45.  
46.         SetupEvents();
47.  
48.         await SignInAnonymouslyAsync();
49.  
50.         NetworkManager.Singleton.OnClientConnectedCallback += ClientConnected;
51.     }
52.  
53.     #region Network events
54.  
55.     private void ClientConnected(ulong id)
56.     {
57.         // Player with id connected to our session
58.  
59.         Debug.Log("Connected player with id: " + id);
60.  
61.         UpdateState?.Invoke("Match found!");
62.         MatchFound?.Invoke();
63.         if (NetworkManager.Singleton.ConnectedClients.Count >= _connectedClientsForStart)
64.         {
65.             NetworkManager.Singleton.SceneManager.LoadScene("CemeteryMultiplayerLightNet", UnityEngine.SceneManagement.LoadSceneMode.Single);
66.         }
67.     }
68.  
69.     #endregion
70.  
71.     #region UnityLogin
72.  
73.     void SetupEvents()
74.     {
75.         AuthenticationService.Instance.SignedIn += () => {
76.             // Shows how to get a playerID
77.             Debug.Log($"PlayerID: {AuthenticationService.Instance.PlayerId}");
78.  
79.             // Shows how to get an access token
80.             Debug.Log($"Access Token: {AuthenticationService.Instance.AccessToken}");
81.         };
82.  
83.         AuthenticationService.Instance.SignInFailed += (err) => {
84.             Debug.LogError(err);
85.         };
86.  
87.         AuthenticationService.Instance.SignedOut += () => {
88.             Debug.Log("Player signed out.");
89.         };
90.     }
91.  
92.     async Task SignInAnonymouslyAsync()
93.     {
94.         try
95.         {
96.             await AuthenticationService.Instance.SignInAnonymouslyAsync();
97.             _authentificationSucceeded = true;
98.             Debug.Log("Sign in anonymously succeeded!");
99.             UpdateState?.Invoke("Authentication succeeded. Click play!");
100.         }
101.         catch (Exception ex)
102.         {
103.             // Notify the player with the proper error message
104.             Debug.LogException(ex);
105.             UpdateState?.Invoke("Authentification failed");
106.         }
107.     }
108.  
109.     #endregion
110.  
111.     #region Lobby
112.  
113.     public async void FindMatch(string lobbyCode = "")
114.     {
115.         if(!_authentificationSucceeded) { return; }
116.  
117.         UpdateState?.Invoke("Looking for a match...");
118.  
119.         try
120.         {
121.             // Looking for a lobby
122.             // Add options to the matchmaking (mode, rank, etc..)
123.             QuickJoinLobbyOptions options = new QuickJoinLobbyOptions();
124.  
125.             Lobby lobby = lobbyCode.Equals("") ? await Lobbies.Instance.QuickJoinLobbyAsync(options) : await Lobbies.Instance.JoinLobbyByCodeAsync(lobbyCode);
126.  
127.             // Retrieve the Relay code previously set in the create match
128.             string joinCode = lobby.Data["joinCode"].Value;
129.  
130.             JoinAllocation allocation = await Relay.Instance.JoinAllocationAsync(joinCode);
131.  
132.             _joinData = new RelayJoinData
133.             {
134.                 Key = allocation.Key,
135.                 Port = (ushort)allocation.RelayServer.Port,
136.                 AllocationID = allocation.AllocationId,
137.                 AllocationIDBytes = allocation.AllocationIdBytes,
138.                 ConnectionData = allocation.ConnectionData,
139.                 HostConnectionData = allocation.HostConnectionData,
140.                 IPv4Address = allocation.RelayServer.IpV4
141.             };
142.  
143.             NetworkManager.Singleton.GetComponent<UnityTransport>().SetRelayServerData(
144.                 _joinData.IPv4Address,
145.                 _joinData.Port,
146.                 _joinData.AllocationIDBytes,
147.                 _joinData.Key,
148.                 _joinData.ConnectionData,
149.                 _joinData.HostConnectionData);
150.  
151.             NetworkManager.Singleton.StartClient();
152.  
153.             UpdateState?.Invoke("Match found!");
154.             MatchFound?.Invoke();
155.             return;
156.         }
157.         catch (LobbyServiceException e)
158.         {
159.             if (lobbyCode.Equals("")) { CreateMatch(); }
160.             else { UpdateState?.Invoke("Failed lobby code"); }
161.         }
162.  
163.     }
164.  
165.     public async void CreateMatch(bool isPrivateLobby = false)
166.     {
167.         UpdateState?.Invoke("Creating a new match...");
168.  
169.         // External connections
170.         int maxConnections = 1;
171.  
172.         try
173.         {
174.             // Create RELAY object
175.             Allocation allocation = await Relay.Instance.CreateAllocationAsync(maxConnections);
176.             _hostData = new RelayHostData
177.             {
178.                 Key = allocation.Key,
179.                 Port = (ushort)allocation.RelayServer.Port,
180.                 AllocationID = allocation.AllocationId,
181.                 AllocationIDBytes = allocation.AllocationIdBytes,
182.                 ConnectionData = allocation.ConnectionData,
183.                 IPv4Address = allocation.RelayServer.IpV4
184.             };
185.  
186.             // Retrieve JoinCode
187.             _hostData.JoinCode = await Relay.Instance.GetJoinCodeAsync(allocation.AllocationId);
188.  
189.             string lobbyName = "game_lobby";
190.             int maxPlayers = 2;
191.             CreateLobbyOptions options = new CreateLobbyOptions();
192.             options.IsPrivate = isPrivateLobby;
193.  
194.             // Put the JoinCode in the lobby data, visible by every member
195.             options.Data = new Dictionary<string, DataObject>()
196.             {
197.                 {
198.                     "joinCode", new DataObject(
199.                         visibility: DataObject.VisibilityOptions.Member,
200.                         value: _hostData.JoinCode)
201.                 },            
202.             };
203.  
204.             // Create the lobby
205.             var lobby = await Lobbies.Instance.CreateLobbyAsync(lobbyName, maxPlayers, options);
206.  
207.             // Save Lobby ID for later uses
208.             _lobbyId = lobby.Id;
209.  
210.             // Heartbeat the lobby every 15 seconds.
211.             StartCoroutine(HeartbeatLobbyCoroutine(lobby.Id, 15));
212.  
213.             // Now that RELAY and LOBBY are set...
214.  
215.             // Set Transports data
216.             NetworkManager.Singleton.GetComponent<UnityTransport>().SetRelayServerData(
217.                 _hostData.IPv4Address,
218.                 _hostData.Port,
219.                 _hostData.AllocationIDBytes,
220.                 _hostData.Key,
221.                 _hostData.ConnectionData);
222.  
223.             // Finally start host
224.             NetworkManager.Singleton.StartHost();
225.  
226.             UpdateState?.Invoke("Waiting for players...");
227.             if(isPrivateLobby) { PrivateLobbyCreated?.Invoke(lobby.LobbyCode); }
228.         }
229.         catch (LobbyServiceException e)
230.         {
231.             Console.WriteLine(e);
232.         }
233.     }
234.  
235.     IEnumerator HeartbeatLobbyCoroutine(string lobbyId, float waitTimeSeconds)
236.     {
237.         var delay = new WaitForSecondsRealtime(waitTimeSeconds);
238.         while (true)
239.         {
240.             Lobbies.Instance.SendHeartbeatPingAsync(lobbyId);
241.             Debug.Log("Lobby Heartbit");
242.             yield return delay;
243.         }
244.     }
245.     public void ExitLobby()
246.     {
247.         Lobbies.Instance.DeleteLobbyAsync(_lobbyId);
248.         UpdateState?.Invoke("");
249.     }
250.     private void OnDestroy()
251.     {
252.         // We need to delete the lobby when we're not using it
253.         Lobbies.Instance.DeleteLobbyAsync(_lobbyId);
254.     }
255.  
256.     #endregion
257.  
258.     /// <summary>
259.     /// RelayHostData represents the necessary informations
260.     /// for a Host to host a game on a Relay
261.     /// </summary>
262.     public struct RelayHostData
263.     {
264.         public string JoinCode;
265.         public string IPv4Address;
266.         public ushort Port;
267.         public Guid AllocationID;
268.         public byte[] AllocationIDBytes;
269.         public byte[] ConnectionData;
270.         public byte[] Key;
271.     }
272.  
273.     /// <summary>
274.     /// RelayHostData represents the necessary informations
275.     /// for a Host to host a game on a Relay
276.     /// </summary>
277.     public struct RelayJoinData
278.     {
279.         public string JoinCode;
280.         public string IPv4Address;
281.         public ushort Port;
282.         public Guid AllocationID;
283.         public byte[] AllocationIDBytes;
284.         public byte[] ConnectionData;
285.         public byte[] HostConnectionData;
286.         public byte[] Key;
287.     }
288. }

 

Im going to be honest, I cant see what causes your bug.
Maby other can help