Cannot transition to awsgamelift game server after running openlevel

The startmatchmaking executed from the lambda function returns a value of MatchmakingSucceeded, and we have reached the point where the player session is in the reserved state.

However, when I run the Openlevel node from the client side using the IPAddress and Port returned from the SNS, the screen does not transition to the level of the game server.

I have tried rechecking the port and IPaddress, and also tried accept player session with onpostlogin event, but it doesn’t work.

Are there any other settings other than Ipaddress and port that are needed to connect to the game server?