Trying to run

psql -h (db url) -p 5432 -d postgres -U postgres

based off the template and getting

psql: error: connection to server at "db url" (3.88.4.237), port 5432 failed: Connection refused
    Is the server running on that host and accepting TCP/IP connections?

Same thing with pg admin

Confirm that the port is actually 5432. One of my projects has a different port