If you running the latest version of WP you can define values for your proxy in the config (wp-config.php). Should look something like this: define('WP_PROXY_HOST','192.168.84.101'); define('WP_PROXY_PORT','8080'); define('WP_PROXY_USERNAME','my_user_name'); define('WP_PROXY_PASSWORD','my_password'); define('WP_PROXY_BYPASS_HOSTS','localhost, www.example.com');