title: SoapFault exception: Could not connect to host
body: <p>Sometimes fail to call the web service.</p>
  
  <p>This problem happens all the time.</p>
  
  <p>What could be the problem?</p>
  
  <pre><code>Error:
      SoapFault exception: [HTTP] Could not connect to host in 
      0 [internal function]: SoapClient-&gt;__doRequest('&lt;?xml version="...', http://.', '', 1, 0)
  </code></pre>