pg_dump for postgres

I’m trying to create a dump for my posgres db.
I connected to the instance with fly proxy and tried to use pg_dump into a file on my own machine.
I’m being asked for password and after I fill it nothing happens.
I’m getting zero feedback.
Is this the right way to backup?

Can you share the fly proxy command + output and also the full pg_dump command output? It would be worth running pg_dump -v to put it in verbose mode, too.

I just tried it on a different wifi network and it worked.

could be related?