I’m copying this from the git issue I posted a month ago. The following is from the same description I gave in the git report.
Using the Multiplayer Sessions API to matchmake and initialize a multiplay server doesn’t finish connection.
The Matchmaker successfully gets multiplay to create the server, the matchmaker seems to create tickets and match fine, and the allocated server tells me even that a player is connected.
However on the client side, the client is successfully able to connect to the session and its Unity Transport updates with correct information from Multiplay, however none of the other services seem to fire off. Lobby and NGO dont fire off any events, and after around 60-70 seconds the Transport reports the error of “Failed to Connect to Server”
You can find a link to further details here.