Question UnityTransport SetRelayServerData and RelayServerData not working?

Pretty much followed CodeMonkey's tutorial completely on this and cannot figure out why this isn't working after hours of trying to debug it. I've dumbed it down to something in the RelayServerData or when I SetRelayServerData on the transport. What happens is... well nothing, none of the connection data changes on the transport on both the host and the clients. The join codes are the same on both allocations when I test, however the IDs arent, not sure if that's an issue or not. I wouldn't know how they could have the same join codes but be different allocations.

Code (CSharp):

1.     public async Task<string> CreateRelay()
2.     {
3.         try
4.         {
5.             SwapMenuGame(false);
6.  
7.             Allocation allocation = await RelayService.Instance.CreateAllocationAsync(7);
8.  
9.             Debug.Log("allocation ID: " + allocation.AllocationId.ToString());
10.  
11.             string joinCode = await RelayService.Instance.GetJoinCodeAsync(allocation.AllocationId);
12.  
13.             Debug.Log(joinCode);
14.  
15.             RelayServerData relayServerData = new RelayServerData(allocation, "dtls");
16.  
17.             Debug.Log(relayServerData.ConnectionData);
18.  
19.             NetworkManager.Singleton.GetComponent<UnityTransport>().SetRelayServerData(relayServerData);
20.  
21.             Debug.Log(NetworkManager.Singleton.GetComponent<UnityTransport>().ConnectionData.Address);
22.  
23.             NetworkManager.Singleton.StartHost();
24.  
25.             Debug.Log(joinCode);
26.  
27.             return joinCode;
28.  
29.         }
30.         catch (RelayServiceException e)
31.         {
32.             Debug.Log(e);
33.             return null;
34.         }
35.     }
36.  
37.     public async void JoinRelay(string joinCode)
38.     {
39.         try
40.         {
41.             SwapMenuGame(false);
42.  
43.             Debug.Log("Joining Relay with " + joinCode);
44.             JoinAllocation joinAllocation = await RelayService.Instance.JoinAllocationAsync(joinCode);
45.  
46.             Debug.Log("allocation ID: " + joinAllocation.AllocationId.ToString() + "Join Code: " + joinCode);
47.             RelayServerData relayServerData = new RelayServerData(joinAllocation, "dtls");
48.  
49.             Debug.Log(relayServerData.ConnectionData);
50.  
51.             NetworkManager.Singleton.GetComponent<UnityTransport>().SetRelayServerData(relayServerData);
52.  
53.             Debug.Log(NetworkManager.Singleton.GetComponent<UnityTransport>().ConnectionData.Address);
54.  
55.             NetworkManager.Singleton.StartClient();
56.  
57.            
58.         }
59.         catch (RelayServiceException e)
60.         {
61.             Debug.Log(e);
62.         }
63.     }

 

So the transport wouldn't update with the correct information to connect? I am just not getting a connection even though they are using the exact same join code. I check how many clients have connected on the network manager afterward and I only get 1. I also check the allocation IDs, which are different between the clients but have the same join code and IPv4. This was only a problem after incorporating Relay into my project.

 

I am also encountering the same issue.

From my troubleshooting, on the client, Unity Transport is throwing below error:

Failed to connect to server.

UnityEngine.Debug:LogError (object)

Unity.Netcode.Transports.UTP.UnityTransport:ProcessEvent () (at Library/PackageCache/com.unity.netcode.gameobjects@1.2.0/Runtime/Transports/UTP/UnityTransport.cs:828)

Unity.Netcode.Transports.UTP.UnityTransport:Update () (at Library/PackageCache/com.unity.netcode.gameobjects@1.2.0/Runtime/Transports/UTP/UnityTransport.cs:877)

It says "Failed to connect to server" without any details.
Without any further information, I am not sure how to proceed.
Documentations on Unity NetCode and Relay are really lacking.

 

So I went ahead and tested it through the connection approval thing like you were saying. I am only receiving connection requests from the host with the current setup. Any other clients are not properly sending connection requests even though they are getting their RelayServerData from an allocation using the exact same join code as the host's allocation. The client is starting however if that's what you mean by it "returning true"

Code (CSharp):

1.  public async Task<string> CreateRelay()
2.     {
3.         try
4.         {
5.             menu.SetActive(false);
6.             game.SetActive(true);
7.  
8.             Allocation allocation = await RelayService.Instance.CreateAllocationAsync(7);
9.  
10.             string joinCode = await RelayService.Instance.GetJoinCodeAsync(allocation.AllocationId);
11.  
12.             Debug.Log("Join Code: " + joinCode);
13.  
14.             RelayServerData relayServerData = new RelayServerData(allocation, "dtls");
15.  
16.             NetworkManager.Singleton.GetComponent<UnityTransport>().SetRelayServerData(relayServerData);
17.  
18.             NetworkManager.Singleton.ConnectionApprovalCallback = ApprovalCheck;
19.  
20.             NetworkManager.Singleton.StartHost();
21.  
22.             return joinCode;
23.  
24.         }
25.         catch (RelayServiceException e)
26.         {
27.             Debug.Log(e);
28.             return null;
29.         }
30.     }
31.     public async void JoinRelay(string joinCode)
32.     {
33.         try
34.         {
35.             menu.SetActive(false);
36.             game.SetActive(true);
37.  
38.             JoinAllocation joinAllocation = await RelayService.Instance.JoinAllocationAsync(joinCode);
39.  
40.             Debug.Log("Join Code: " + joinCode);
41.  
42.             RelayServerData relayServerData = new RelayServerData(joinAllocation, "dtls");
43.  
44.             NetworkManager.Singleton.GetComponent<UnityTransport>().SetRelayServerData(relayServerData);
45.  
46.             NetworkManager.Singleton.StartClient();
47.  
48.  
49.         }
50.         catch (RelayServiceException e)
51.         {
52.             Debug.Log(e);
53.         }
54.     }
55.  
56.     private void ApprovalCheck(NetworkManager.ConnectionApprovalRequest request, NetworkManager.ConnectionApprovalResponse response)
57.     {
58.         // The client identifier to be authenticated
59.         var clientId = request.ClientNetworkId;
60.  
61.         Debug.Log("Connection received from: " + clientId);
62.  
63.         response.Approved = true;
64.         response.CreatePlayerObject = true;
65.  
66.         response.Pending = false;
67.     }

 

Thanks, simon. It is indeed because of parameter "secure". It turns out without passing value for secure, Transport will throw "Failed to connect to server" error. isSecure field has by default "false" value. https://docs.unity3d.com/Packages/c...utp@1.0/api/Unity.Netcode.UnityTransport.html

This is not mentioned in documentations:

• https://docs.unity.com/relay/relay-...e_transport_and_start_NGO_as_a_joining_player
• https://docs-multiplayer.unity3d.com/netcode/current/relay/relay/index.html

Here's corrected code:

Code (CSharp):

1. transport.SetRelayServerData(relayServer.Host, (ushort) relayServer.Port, allocation.AllocationIdBytes, allocation.Key, allocation.ConnectionData, allocation.HostConnectionData, true);

My connection is dtls.

 

The protocol type does change to 'Relay Unity Transport' and the client does get a "Failed to connect to server" error after a while. I'm using ParrelSync to test, but I have also tried loading a build up on a separate computer and have the same issue.

 

Seeing a very similar problem - I've got a WebGL project set to use WebSockets in the UnityTransport component.
Versions:
NGO 1.2.0
UnityTransport 2.0.0-pre.3
Relay 1.0.5
Unity 2022.2.0b10

I've tried creating the relay using both udp and dtls,

Code (CSharp):

1.                
2. RelayServerData relayServerData = new RelayServerData(allocation, "udp");
3. NetworkManager.Singleton.GetComponent<UnityTransport>().SetRelayServerData(relayServerData);
4.  

but after about a minute I get an error of "Failed to establish connection with the relay server" and the transport shuts down. Similarly, the client can not connect. I'm using parrelsync for the client connection.

Interestingly, when I call SetRelayServerData, and then pause, the Connection Data section on my Unity Transport object has not changed - still showing loopback address, etc.

 

You are a genius, thank you, that was it. Changing to "wss" instead of "udp" or "dtls" was what worked. Much appreciated!

 

So the issue has been solved, first I'm not sure that com.unity.transport was installed correctly. And secondly after fixing that, changing the type from dtls to udp fixed it. Thank you so much for all the help!