C4W4 Capstone Project Part 2 - Aiflow UI Not Reachable

C4W4 Assignment 5 section 4.1 - Accessing Apache Airflow.

I have checked that my ec2 is running and also checked the security groups. Everything appears to be fine however, the UI is not reachable. I keep getting error " This site can’t be reached
ec2-3-234-18-78.compute-1.amazonaws.com took too long to respond.

Am I going to have to start this assignemt from scratch?

Hello @chiefaiofficer
I am sorry for the inconvenience. I tried the lab, and unfortunately I couldn’t reproduce the issue. I guess there might have been a problem with your lab instance’s setting up, and you might not face the same issue on your next try.
This time you start the lab, please open the AirflowDNS output in your CloudFormation in the very beginning. If the issue persists, please report so that I ask the team for solutions.