Port 4000 Unreachable.

[leelee1995]

When using the command 'npm start' in the analytics.usa.gov project directory it will run successfully serving on port 4000. However, on the http://localhost:4000/ it is unreachable.

I am using analytics-reporter project as the local data, and I have used the command 'serve --cors' in that directory which shows up on http://localhost:3000/.

I have verified all port forwarding rules and firewall rules are correctly configured; Port 4000 is configured the same as port 3000. Tested port 4000 using the command 'serve --cors --port 4000' which works.

What I am possibly missing?