How can I prevent an Error Establishing Database Connection when installing WordPress Multisite Network?

Question

I have installed wordpress in a subdirectory. After I run the setup I get an Error Establishing Connection to Database when attempting to access my site. If I comment out the line define('SUBDOMAIN_INSTALL', false); in wp-config.php, then it works but the network doesn't read as being set up. What is it about this line that breaks my database connection?

Answer 1

The problem was actually that the following line was missing: define('MULTISITE', true); File this one under operator error.