Relay not connecting client when using dtls as connection type but working fine with udp

Unity Engine
1

There is no problem when trying to start the host with netcode for gameobject but the client doesn’t connect, neither does it show any error
This is how i am creating a relay

try
        {
            LobbyUI.Instance.HideLobbyCanvas();
            Allocation allocation =  await RelayService.Instance.CreateAllocationAsync(1);
            string joinCode= await RelayService.Instance.GetJoinCodeAsync(allocation.AllocationId);
            RelayServerData relayServerData = new RelayServerData(allocation,"dtls");
            NetworkManager.Singleton.GetComponent<UnityTransport>().SetRelayServerData(relayServerData);
            NetworkManager.Singleton.StartHost();
            return joinCode;
        }
        catch (RelayServiceException e) {
            LobbyUI.Instance.ShowLobbyCanvas();
            Debug.Log(e);
        }

and this is how i am joining a relay

try
        {
            Debug.Log(joinCode);
            LobbyUI.Instance.HideLobbyCanvas();
            JoinAllocation allocation= await RelayService.Instance.JoinAllocationAsync(joinCode);
            RelayServerData relayServerData = new RelayServerData(allocation, "udp");
            NetworkManager.Singleton.GetComponent<UnityTransport>().SetRelayServerData(relayServerData);
            NetworkManager.Singleton.StartClient();
        }
        catch (RelayServiceException e) {
            LobbyUI.Instance.ShowLobbyCanvas();
            Debug.Log(e);
        }
2

Are your host and client on the same machine?

If you wait a bit after starting the client, does it eventually show an error message? I think the default connection timeout is around a minute (you can change the values in the inspector under the ‘Unity Transport’ component).