I'm currently setting up a Amazon RDS for PostgreSQL database and connection fails every single time. I've remade the Amazon RDS for PostgreSQL instance 3x now, both with default out of the box settings and custom settings, and even tried putting creds on pgAdmin, no dice. I've tested another database connection and it works just fine.
I'm setting it to be public accessible as well, with username and database both just "postgres". What am I doing wrong?