I'm having trouble connecting Appium to our local Grid.

When I try to connect I don't get any errors, but I do not see Appium in the Grid console.

Here's my node config file.

{
     "capabilities":
     [
        {
            "browserName":“iPhone5”,
            "version”:”6.1,
            "maxInstances": 1,
            "platform”:”MAC”
        }
    ],
    "configuration":
    {
        "cleanUpCycle":2000,
        "timeout":30000,
        "proxy": "org.openqa.grid.selenium.proxy.DefaultRemoteProxy",
        "url":"http://127.0.0.1:4723/wd/hub",
        "host": “127.0.0.1”,
        "port": 4723,
        "maxSession": 1,
        "register": true,
        “hubPort: 4444,
        “hubHost”: “192.168.28.74”:

    }
}

Has anyone had any success connecting Appium to their own Grid?