[YouTube-API] New server and Uncaught exception 'Zend_Gdata_App_HttpException' (Error #60)

Hi, I'm newbie with YouTube API.

We have one web application for uploading videos to YouTube. It worked without problem, but on the new server upload fail with message (from error.log):

[Thu Mar 30 12:46:59 2011] [error] [client x.x.x.x]
PHP Fatal error:  Uncaught exception 'Zend_Gdata_App_HttpException' with message 'Unable to Connect to ssl://www.google.com:443. Error #60: Operation timed out'

The class we used has autentication:

 require_once 'Zend/Loader.php';

 Zend_Loader::loadClass('Zend_Gdata_YouTube');
 Zend_Loader::loadClass('Zend_Gdata_ClientLogin');
 Zend_Loader::loadClass('Zend_Gdata_HttpClient');
 Zend_Loader::loadClass('Zend_Gdata_App_MediaFileSource');
 Zend_Loader::loadClass('Zend_Gdata_App_HttpException');
 Zend_Loader::loadClass('Zend_Uri_Http');
 Zend_Loader::loadClass('Zend_Gdata_App_Exception');

 //login in to YT
 $authenticationURL= 'https://www.google.com/youtube/accounts/ClientLogin';

 $httpClient = Zend_Gdata_ClientLogin::getHttpClient(
  $username = $yt_user,
  $password = $yt_passwd,
  $service = 'youtube',
  $client = null,
  $source = $yt_source,
  $loginToken = null,
  $loginCaptcha = null,
  $authenticationURL);
 
 $config = array('timeout' => 1000);

 $httpClient->setConfig($config);
 
 $yt = new Zend_Gdata_YouTube($httpClient, $yt_source, NULL, $yt_api_dev_key);

 return $yt;

The ssl library (extension=php_openssl.dll) is activated on the server.

I'm not sure if it could be some proxy problem...

Thank you in advance.

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