title: selenium grid is not starting more than 5 sessions
body: <p><strong>I have done grid setup as follows:</strong></p>
  
  <p><strong>Hub:</strong> iMAC</p>
  
  <p><strong>Started with:</strong> 
  java -jar Downloads/selenium-server-standalone-2.52.0.jar -port 4444 -role hub</p>
  
  <p><strong>Node1:</strong>
  Win8 system</p>
  
  <p><strong>Started with:</strong> 
  java -Dwebdriver.chrome.driver=chromedriver.exe -jar selenium-server-standalone-2.52.0.jar -role webdriver -hub <a href="http://192.168.1.103:4444/grid/register" rel="nofollow noreferrer">http://192.168.1.103:4444/grid/register</a> -nodeConfig Node1.json</p>
  
  <p><strong>Node2:</strong>
  Win10 system</p>
  
  <p><strong>Started with:</strong> 
  java -Dwebdriver.chrome.driver=chromedriver.exe -jar selenium-server-standalone-2.52.0.jar -role webdriver -hub <a href="http://192.168.1.103:4444/grid/register" rel="nofollow noreferrer">http://192.168.1.103:4444/grid/register</a> -nodeConfig Node2.json</p>
  
  <p>The contents of the json is as follows:</p>
  
  <pre><code>    {
    "capabilities":
        [
          {
            "browserName": "firefox",
            "maxInstances": 5,
            "seleniumProtocol": "WebDriver"
          },
          {
            "browserName": "chrome",
            "maxInstances": 5,
            "seleniumProtocol": "WebDriver"
          },
          {
            "platform": "WINDOWS",
            "browserName": "internet explorer",
            "maxInstances": 1,
            "seleniumProtocol": "WebDriver"
          }
        ],
    "configuration":
    {
      "proxy": "org.openqa.grid.selenium.proxy.DefaultRemoteProxy",
      "maxSession": 10,
      "port": 5557,
      "host": ip address of node1,
      "register": true,
      "registerCycle": 5000,
      "hubPort": 4444,
      "hubHost": ip address of hub
    }
  }
  </code></pre>
  
  <p>Hub and nodes are started correctly. When i run a testng suite with 20 tests in the suite xml, with thread-count="10"</p>
  
  <p>I see only 5 sessions are triggered, </p>
  
  <ul>
  <li>3 on Node1  </li>
  <li>2 on Node2</li>
  </ul>
  
  <p><strong>Expected/Want to achieve:</strong>
  10 sessions should be triggered, 5 on each nodes.</p>
  
  <p>I tried the same setup with different versions of selenium server standalone, no luck though!!!</p>
  
  <p>Please let me know if i'm doing any configuration mistakes.</p>