WP won’t allow updating of plugins or themes because it cannot get thru the proxy. You have to add the following lines to wp-config.php:
/* Roy added proxy config */
define(‘WP_PROXY_HOST’, ’214.100.100.10′);
define(‘WP_PROXY_PORT’, ’8881′);
define(‘WP_PROXY_USERNAME’, ‘EAC\USERNAME’);
define(‘WP_PROXY_PASSWORD’, ‘PASSWORD’);
define(‘WP_PROXY_BYPASS_HOSTS’, ‘localhost, eacwamp01, eacintra01′);
Note the username and password fields also need the quotes round them.