casperjs doesn't work as expected on windows machine

Question

I have a casperjs script which gives the desired result when I run on a linux server, but when I run the same from my laptop, it doesn't work.

How should I debug? Logs of the working one:

[info] [phantom] Starting...
[info] [phantom] Running suite: 3 steps
[debug] [phantom] opening url: http://caspertest.grsrv.com/, HTTP GET
[debug] [phantom] Navigation requested: url=http://caspertest.grsrv.com/, type=Other, willNavigate=true, isMainFrame=true
[debug] [phantom] Navigation requested: url=https://caspertest.grsrv.com/my_app, type=Other, willNavigate=true, isMainFrame=true
[debug] [phantom] Navigation requested: url=https://caspertest.grsrv.com/my_app/, type=Other, willNavigate=true, isMainFrame=true
[debug] [phantom] url changed to "https://caspertest.grsrv.com/my_app/"
[debug] [phantom] Navigation requested: url=https://caspertest.grsrv.com/my_app/#/auth, type=Other, willNavigate=true, isMainFrame=true
[debug] [phantom] url changed to "https://caspertest.grsrv.com/my_app/#/auth"
[debug] [phantom] Successfully injected Casper client-side utilities
[info] [phantom] Step anonymous 2/3 https://caspertest.grsrv.com/my_app/#/auth (HTTP 200)
[info] [remote] attempting to fetch form element from selector: 'form'
[debug] [remote] Set "null" field value to test
[debug] [remote] Set "null" field value to ****
[debug] [phantom] Capturing page to /home/grsrvadmin/gs/casper/ss.png
[info] [phantom] Capture saved to /home/grsrvadmin/gs/casper/ss.png
[debug] [phantom] Mouse event 'mousedown' on selector: input[id="loginButton"]
[debug] [phantom] Mouse event 'mouseup' on selector: input[id="loginButton"]
[debug] [phantom] Mouse event 'click' on selector: input[id="loginButton"]
[info] [phantom] Step anonymous 2/3: done in 1556ms.
[info] [phantom] Step _step 3/3 https://caspertest.grsrv.com/my_app/#/auth (HTTP 200)
[info] [phantom] Step _step 3/3: done in 1569ms.
[debug] [phantom] Navigation requested: url=https://caspertest.grsrv.com/my_app/#/agreement/r8moskcfv7c80gpcd40fl12nmpf9e0nb, type=Other, willNavigate=true, isMainFrame=true
[debug] [phantom] url changed to "https://caspertest.grsrv.com/my_app/#/agreement/r8moskcfv7c80gpcd40fl12nmpf9e0nb"
[debug] [phantom] url changed to "https://caspertest.grsrv.com/my_app/#/agreement/r8moskcfv7c80gpcd40fl12nmpf9e0nb"
[info] [phantom] waitFor() finished in 217ms.
[info] [phantom] Step anonymous 4/4 https://caspertest.grsrv.com/my_app/#/agreement/r8moskcfv7c80gpcd40fl12nmpf9e0nb (HTTP 200)
[debug] [phantom] Mouse event 'mousedown' on selector: input[id="aggr_actionAccept"]
[debug] [phantom] Mouse event 'mouseup' on selector: input[id="aggr_actionAccept"]
[debug] [phantom] Mouse event 'click' on selector: input[id="aggr_actionAccept"]
[info] [phantom] Step anonymous 4/4: done in 1813ms.
[info] [phantom] Done 4 steps in 1826ms
[debug] [phantom] Navigation requested: url=about:blank, type=Other, willNavigate=true, isMainFrame=true
[debug] [phantom] url changed to "about:blank"

logs on windows machine:

[info] [phantom] Starting...
[info] [phantom] Running suite: 3 steps
[debug] [phantom] opening url: http://caspertest.grsrv.com/, HTTP GET
[debug] [phantom] Navigation requested: url=http://caspertest.grsrv.com/, type=Other, willNavigate=true, isMainFrame=true
[debug] [phantom] Navigation requested: url=https://caspertest.grsrv.com/my_app, type=Other, willNavigate=true, isMainFrame=true
[debug] [phantom] Navigation requested: url=https://caspertest.grsrv.com/my_app/, type=Other, willNavigate=true, isMainFrame=true
[debug] [phantom] url changed to "https://caspertest.grsrv.com/my_app/"
[debug] [phantom] Navigation requested: url=https://caspertest.grsrv.com/my_app/#/auth, type=Other, willNavigate=true, isMainFrame=true
[debug] [phantom] url changed to "https://caspertest.grsrv.com/my_app/#/auth"
[debug] [phantom] Successfully injected Casper client-side utilities
[info] [phantom] Step anonymous 2/3 https://caspertest.grsrv.com/my_app/#/auth (HTTP 200)
[info] [remote] attempting to fetch form element from selector: 'form'
[debug] [phantom] Navigation requested: url=about:blank, type=Other, willNavigate=true, isMainFrame=true
[debug] [phantom] url changed to "about:blank"

Script:

var casper = require('casper').create ({
  waitTimeout: 60000,
  stepTimeout: 60000,
  verbose: true,
  logLevel: "debug",
  viewportSize: {
    width: 1366,
    height: 768
  },
  pageSettings: {
    "userAgent": "Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:50.0) Gecko/20100101 Firefox/50.0",
    "loadImages": true,
    "loadPlugins": true,
    "webSecurityEnabled": false,
    "ignoreSslErrors": true
  },
  onWaitTimeout: function() {
    casper.echo('Wait TimeOut Occured');
  },
  onStepTimeout: function() {
    casper.echo('Step TimeOut Occured');
  }
});

casper.start('http://caspertest.grsrv.com/', function() {
    this.fillSelectors('form', {
        'input[id="userName"]': 'test',
        'input[id="userPassword"]': 'test',
    }, false);
    this.capture('ss.png');
    this.click('input[id="loginButton"]')
});


casper.waitForSelector('#aggr_actionAccept', function() {
    this.click('input[id="aggr_actionAccept"]')
});

This is how I am executing:

casperjs --ignore-ssl-errors=true test.js

The resource is with a client and I am using a VPN on my windows machine to access the resource on my browser. The linux machine on which it is working is with the client itself