SoapFault exception: [WSDL] SOAP-ERROR: Parsing WSDL: Couldn't load from - php

Question

Using Plesk 12.5 and PHP 7.0.2 I get the error:
SoapFault exception: [WSDL] SOAP-ERROR: Parsing WSDL: Couldn't load from 'https://<IP ADDRESS>:9443/Configuration?wsdl' : failed to load external entity "https://<IP ADDRESS>:9443/Configuration?wsdl" in <PHP FILE>:51 Stack trace: #0 <PHP FILE>(51): SoapClient->SoapClient('https://<IP FILE>', Array) #1
It works using PHP 5.3 from the OS, but and PHP from Plesk I get the above error.
PHP-SOAP, XML, is installed.
The code I am using is:
try {
$configClient = new soapclient("https://{$node["host"]}:{$node["port"]}/Configuration?wsdl",
array('login' => $node["user"],
'password' => $node["pass"],
'trace' => 1,
'cache_wsdl' => WSDL_CACHE_NONE,
'features' => SOAP_SINGLE_ELEMENT_ARRAYS
)
);
$configResponse = $configClient->enableALLProductFeatures();
} catch (SoapFault $exception) {
echo "Problem..... : ";
echo $exception;
}

Answer 1

Resolved by stream_context options. My code now looks like the following:
$context = stream_context_create(array(
'ssl' => array('verify_peer' => false, 'verify_peer_name'=>false, 'allow_self_signed' => true)
));
try {
$configClient = new soapclient("https://{$node["host"]}:{$node["port"]}/Configuration?wsdl",
array('login' => $node["user"],
'password' => $node["pass"],
'trace' => 1,
'cache_wsdl' => WSDL_CACHE_NONE,
'features' => SOAP_SINGLE_ELEMENT_ARRAYS,
'stream_context' => $context
)
);
$configResponse = $configClient->enableALLProductFeatures();
} catch (SoapFault $exception) {
echo "Problem..... : ";
echo $exception;
}

Answer 2

Try debug your connection with curl:
curl -v --user "<login>:<password>" --header "Content-Type: text/xml;charset=UTF-8" --header "SOAPAction:<action>" --data #<file_name> <url_of_the_soap_web_service>