PHP SOAP-ERROR：SoapFault无法连接到主机

Question

我遇到SoapClient（PHP）连接到主机的问题。

https://ws.ocasa.com/testecommerce/service.asmx?wsdl 我不知道为什么，我有这个回应：

SoapFault Could not connect to host

我正在使用laravel，我的代码是：

$auth = new \stdClass();
$auth->UserName = 'xxxxx';
$auth->PassWord = 'xxxxx';
$location = 'https://ws.ocasa.com/testecommerce/service.asmx';
$uri = 'https://ws.ocasa.com/testecommerce/service.asmx?WSDL';

    $this->client = new \SoapClient(null,
        [
            'location'=>$location,
            'uri'=>$uri
        ]);
    $soap_header = new \SoapHeader('http://tempuri.org/','SecurityAccess',$auth,false);
    $this->client->__setSoapHeaders($soap_header);
$this->client->__soapCall("GenerarRetiros", array([]));

我在SoapUI上尝试了这个WSDL，它完美无缺。所以它似乎不是WSDL。但是在代码中如果我替换下面那个的WSDL，那么错误就会消失，所以我不知道问题出在哪里，在代码中或在wsdl中。

https://id3check.gb.co.uk/gbportalinternational/aspx/id3check_1b.asmx?WSDL

谢谢