title: connect ETIMEDOUT error using POSTMAN with NEWMAN
body: <p>I'm using Newman in order to execute a POSTMAN collection but I always have the
  error  "connect ETIMEDOUT". Using just POSTMAN it works fine, but not with NEWMAN.
  The testing is quite simple,  create a content on the server
   <strong><a href="https://jsonblob.com/api" rel="nofollow noreferrer">https://jsonblob.com/api</a></strong></p>
  
  <p>I'm following the tutorial
  <a href="http://blog.getpostman.com/2014/04/17/how-to-write-automated-tests-for-apis-with-postman-part-2/" rel="nofollow noreferrer">http://blog.getpostman.com/2014/04/17/how-to-write-automated-tests-for-apis-with-postman-part-2/</a></p>
  
  <p>Thanks you very much in advance. I put below the collection and the enviroment file.</p>
  
  <p><strong>This is the collection:</strong>
  {
    "id": "a6a6b2fe-db11-4c57-9144-6b3324174f18",
    "name": "Newman",
    "values": [
      {
        "key": "url",
        "value": "<a href="https://jsonblob.com" rel="nofollow noreferrer">https://jsonblob.com</a>",
        "enabled": true,
        "type": "text"
      },
      {
        "key": "deviceMapping",
        "value": "{\n  \"content\": \"My first blog post :)\"\n}",
        "enabled": true,
        "type": "text"
      },
      {
        "key": "blogLink",
        "value": "<a href="https://jsonblob.com/api/jsonBlob/b7f2ce87-4c8e-11e8-917b-9137e61d314b" rel="nofollow noreferrer">https://jsonblob.com/api/jsonBlob/b7f2ce87-4c8e-11e8-917b-9137e61d314b</a>",
        "enabled": true,
        "type": "text"
      }
    ],
    "_postman_variable_scope": "environment",
    "_postman_exported_at": "2018-04-30T16:13:07.630Z",
    "_postman_exported_using": "Postman/6.0.10"
  }</p>
  
  <p><strong>This is the enviroment file:</strong>
  {
    "id": "a6a6b2fe-db11-4c57-9144-6b3324174f18",
    "name": "Newman",
    "values": [
      {
        "key": "url",
        "value": "<a href="https://jsonblob.com" rel="nofollow noreferrer">https://jsonblob.com</a>",
        "enabled": true,
        "type": "text"
      },
      {
        "key": "deviceMapping",
        "value": "{\n  \"content\": \"My first blog post :)\"\n}",
        "enabled": true,
        "type": "text"
      },
      {
        "key": "blogLink",
        "value": "<a href="https://jsonblob.com/api/jsonBlob/b7f2ce87-4c8e-11e8-917b-9137e61d314b" rel="nofollow noreferrer">https://jsonblob.com/api/jsonBlob/b7f2ce87-4c8e-11e8-917b-9137e61d314b</a>",
        "enabled": true,
        "type": "text"
      }
    ],
    "_postman_variable_scope": "environment",
    "_postman_exported_at": "2018-04-30T16:13:07.630Z",
    "_postman_exported_using": "Postman/6.0.10"
  }</p>