Can't connect to my application using ROS Bridge

Hi there, I trying to set up port forwarding for my simulation so that I can test my FMS. I followed this tutorial https://docs.aws.amazon.com/robomaker/latest/dg/simulation-job-remote-connectivity.html. But I still failed to connect. Could you please instruct me in detail on how to connect to my FMS?

Thank you and have a nice day,