SoapFault exception: Could not connect to host

Question

Sometimes fail to call the web service.

This problem happens all the time.

What could be the problem?

Error:
    SoapFault exception: [HTTP]          


        

Answer 1

The problem was solved.The problem is the cache

ini_set('soap.wsdl_cache_enabled',0);
ini_set('soap.wsdl_cache_ttl',0);

Answer 2

In my case service address in wsdl is wrong.

My wsdl url is.

https://myweb.com:4460/xxx_webservices/services/ABC.ABC?wsdl

But service address in that xml result is.

<soap:address location="http://myweb.com:8080/xxx_webservices/services/ABC.ABC/"/>

I just save that xml to local file and change service address to.

<soap:address location="https://myweb.com:4460/xxx_webservices/services/ABC.ABC/"/>

Good luck.

Answer 3

If the connection is through SSL, could be a problem of server instead of client (it is my case).

In PHP versions greater than 5.6 and 7, is important to check the CipherSuite used in server certificate. There is a full list of ciphers allowed by this versions and a full list of ciphers that do not in this web link: https://wiki.mozilla.org/Security/Server_Side_TLS#Recommended_Ciphersuite

If the cipher used is not allowed (it is a deprecated algorithm), SoapClient receives "Could not connect to host" and there is no more trace about it.

The cipher used can be checked by clients like SoapUI in the section of "SSL Info", for example.

There is no thread forum treating about this in internet.

Check this out, too: http://php.net/manual/en/migration56.openssl.php

Answer 4

With me, this problem in base Address in app.config of WCF service: When I've used:

<baseAddresses><add baseAddress="http://127.0.0.1:9022/Service/GatewayService"/> </baseAddresses>

it's ok if use .net to connect with public ip or domain.

But when use PHP's SoapClient to connect to "http://[online ip]:9022/Service/GatewayService", it's throw exception "Coulod not connect to host"

I've changed baseAddress to [online ip]:9022 and everything's ok.

Answer 5

In my case, disabled SELINUX allow PHP to call my WebService. I run PHP in FPM with Apache2

SELinux status :

# sestatus

Disable SELinux :

setenforce 0

Enable SELinux :

# setenforce 1

Permanent disable :

edit this file /etc/selinux/config

Answer 6

This work for me

$opts = array(
  'ssl' => array('verify_peer' => false, 'verify_peer_name' => false)
);

if (!isset($this->soap_client)) {
  $this->soap_client = new SoapClient($this->WSDL, array(
    'soap_version'   => $this->soap_version,
    'location'       => $this->URL,
    'trace'          => 1,
    'exceptions'     => 0,
    'stream_context' => stream_context_create($opts)
  ));