"Error establishing a database connection"

Using phpMyAdmin I created a mySQL database and setup a User with Password. Then filled the details into wp-config.php and tried to intall WordPress. Got “Error establishing a database connection”.

The trouble was that when I specified the Password in phpMyAdmin I then also clicked the “Generate Password” button. (I thought that’s what I was supposed to do ??
I did not realise that this button generates a random password, and ALSO FILLS THIS RANDOM PASSWORD into the database LogIn information overwriting the password I had entered.

That’s why the database password did not match what I typed into wp-config.

Solution: Do not click buttons unless you (ie. me) understand what they do.

All works OK now.