From Liway Wiki
Wordpress Server Communication
There is currently a problem with wordpress, whereby it's server communication features cause it to break, on our server. The cause of this issue is unknown, but given other scripts such as phpbb3 can perform similar tasks without problems, I would presume this Wordpress in incompatible with the very latest PHP version (5.3.x).
To fix this, edit the file wp-config.php and add this line:
define('WP_HTTP_BLOCK_EXTERNAL', true );
This will disable server communication in Wordpress and thus remove the problems.