Web UI login redirects build page and login page

Hello,

I am following the S&W tutorial on an AWS Linux ec2 and Docker. I can’t get the web UI passed the welcome screen.
When I paste the build link into the browser the correct screen loads for a split second and then redirects to -

This site can’t be reached

127.0.0.1 refused to connect.

Why do the pages redirect? Is this from the concourse image? I have changed the
CONCOURSE_EXTERNAL_URL to the ec2 url - http://100.21.26.50:8080 and the .flyrc file
has api: http://100.21.26.50:8080.

Thanks -

Does that behavior happen in an incognito/private browser session with cache disabled?

Yes It does.
I think I found the solution, It has to do with the docker-compose.yml from Stark&Wayne. I think I found a better docker-compose.yml here -
https://github.com/concourse/concourse-docker
Testing it now.
It works!!!

Thanks for responding.