diff --git a/wp-includes/http.php b/wp-includes/http.php index 0560940a76..09f376e942 100644 --- a/wp-includes/http.php +++ b/wp-includes/http.php @@ -630,6 +630,11 @@ class WP_Http_Fsockopen { } } + //fsockopen has issues with 'localhost' with IPv6 with certain versions of PHP, It attempts to connect to ::1, + // which fails when the server is not setup for it. For compatibility, always connect to the IPv4 address. + if ( 'localhost' == strtolower($fsockopen_host) ) + $fsockopen_host = '127.0.0.1'; + // There are issues with the HTTPS and SSL protocols that cause errors that can be safely // ignored and should be ignored. if ( true === $secure_transport )