I have installed wordpress in my xampp server. everything looks great. I am using proxy so i have added below snippet in wp_config.php to use proxies.

/* Configure proxy Server */
define('WP_PROXY_HOST', '192.56.14.2');
define('WP_PROXY_PORT', '5656');
define('WP_PROXY_USERNAME', 'xxxx');
define('WP_PROXY_PASSWORD', 'xxxx');

I think there is problem in installation. So I am editing the question. I install WP and set proxies like i said. then I go to Dashboard and there is news section which shows the error like following.

when i try to INSTALL any theme. It shows following Error.

Installation failed: Download failed. cURL error 56: Proxy CONNECT aborted 

I couldn’t find much on this.Any help would be so awesome!