Recently i had a small Problem with the Service of a Partner we use for a new Project, it worked all together just fine, but just was a little bit slow at times, so i often got a Red Timeout after 10 Seconds.
All you’ve to do here is, of course, increase the timeout by configuring the Zend_Http_Client that is used here, unfortunately you ether have to set it in every method you use like:

$this->_httpClient->setConfig(array('timeout' => '60'));

(if you like me has an own class that extends from Zend_XmlRpc_Client to do your bidding). O

r must supply a full new, configured HTTP Client like:

$httpClient = new Zend_Http_Client;
$httpClient->setConfig(array('timeout' => '60'));
$xmlrpcClient = new Zend_XmlRpc_Client('http://www.foobar.com/service',$httpClient);

(or something along those lines)