I'm unable to connect the server

I have created a Postgres instance on the render and I want to connect this Database to PgAdmin tool, while connecting encountered an error showing No such Host is known.
please help me out, I have provided the same hostname, username, password, provided in the render.

Hi,

This question has been asked in this community before. A quick search for pgadmin brings up topics like: https://community.render.com/t/error-when-accessing-the-postgresql-server-in-pgadmin/19415

Your screenshot shows you’re using the Internal hostname. You’ll need to use the external connection details. More in the topic linked above.

Alan