WordPress – Time To First Byte Slow – IIS

I had a problem with a WordPress website that I recently moved to a new server running PHP 5.4 and IIS. I found that the fix to my problem was in the wp-config.php file. I had to change the hostname of the MySQL db from localhost to 127.0.0.1. Maybe this is an issue with IPv6 being enabled on the server. I’ll try and look at that later.

From…

/** MySQL hostname */
define('DB_HOST', 'localhost');

To…

/** MySQL hostname */
define('DB_HOST', '127.0.0.1');