Question NetworkManager not keeping connection alive.

Hi! I'm currently implementing Relay connection on my project. Everything works fine until I try to connect a client to the relay, which gives me the erro "Relay code no found". I followed the Using Relay with NGO documentation and I'm using Relay Unity Transport as the Protocol. I've read a few threads about this problem but none of them worked.
Here's the Allocation code:

Code (CSharp):

1. Allocation allocation = await Relay.Instance.CreateAllocationAsync(2);
2.  
3.         RelayData data = new RelayData
4.         {
5.             IPv4Address = allocation.ServerEndpoints.Find(item => item.ConnectionType == ("dtls")).Host,
6.             Port = (ushort)allocation.ServerEndpoints.Find(item => item.ConnectionType == ("dtls")).Port,
7.             AllocationID = allocation.AllocationId,
8.             AllocationIDBytes = allocation.AllocationIdBytes,
9.             ConnectionData = allocation.ConnectionData,
10.             Key = allocation.Key
11.         };
12.  
13.         string joinCode = await RelayBaseServices.GetJoinCode(data.AllocationID);
14.  
15. NetworkManager.Singleton.GetComponent<UnityTransport>().SetHostRelayData(
16.                 data.IPv4Address,
17.                 data.Port,
18.                 data.AllocationIDBytes,
19.                 data.Key,
20.                 data.ConnectionData
21.                 );
22.  
23.             NetworkManager.Singleton.StartHost();

And here's the code to JoinAllocation:

Code (CSharp):

1. JoinAllocation allocation = await Relay.Instance.JoinAllocationAsync(_currentlobby.Data["RelayJoinCode"].Value);
2.  
3.             RelayData data = new RelayData
4.             {
5.                 IPv4Address = allocation.ServerEndpoints.Find(item => item.ConnectionType == ("dtls")).Host,
6.                 Port = (ushort)allocation.ServerEndpoints.Find(item => item.ConnectionType == ("dtls")).Port,
7.                 AllocationID = allocation.AllocationId,
8.                 AllocationIDBytes = allocation.AllocationIdBytes,
9.                 ConnectionData = allocation.ConnectionData,
10.                 Key = allocation.Key,
11.                 HostConnectionData = allocation.HostConnectionData
12.             };
13.  
14. NetworkManager.Singleton.GetComponent<UnityTransport>().SetClientRelayData(
15.                 data.IPv4Address,
16.                 data.Port,
17.                 data.AllocationIDBytes,
18.                 data.Key,
19.                 data.ConnectionData,
20.                 data.HostConnectionData
21.                 );
22.  
23.             NetworkManager.Singleton.StartClient();

As you can see, I'm not calling JoinAllocation for the Host, as in this Thread (https://forum.unity.com/threads/relay-code-not-found.1197817/). And I immediatly call StartHost() and StartClient(), which should be enough to keep the connection alive, but it does not and 10 seconds later i get "relay code not found" if I try to connect (If I connect within 10 seconds the connection works fine). this Thread (https://forum.unity.com/threads/how-to-keep-relay-connection-alive-using-ngo.1205806/) suggests a test using Interactive Relay Sample, I did the test and this error shows up even in the sample:



I would REALLY appreciate some help. Thank you!

 

I encountered the same issue before. For my case, I didn't change anything in terms of code but just restarting the unity works.

 

I'm running into this too now -- did you ever figure out the issue? Restarting Unity didn't solve it for me either.

 

Hi @ZetsubouGum1,

Can you share Relay and Netcode version?
Maybe you could use "RelayServerData" data instead of "RelayData".
And use "NetworkManager.Singleton.GetComponent<UnityTransport>().SetRelayServerData(RelayServerData);"

Have you ever read this documentation page?