I’ve been using MS SQL and Oracle for almost twenty years but I’m now trying out PostgreSQL which I’ve hosted on AWS. I set the database to be publicly accessible and then I downloaded PGAdmin and tried to connect to my server. I used the endpoint from AWS and my username and password for the database and set the Maitenance Database to the name of my PostgreSQL database. I get a timeout error as shown below.
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I’m obviously missing something, can someone with more experience of this please help

I’ve rechecked all the settings, I’ve opened port 5432 and ran it again but I still get the same error