Not Getting SmartThings Hub Communication Established

I need some help to get the Smarthings portion of homebridge working.

After starting homebridge with Smartthings, I see the expected output however I do not see... SmartThings Hub Communication Established after Homebridge is running on port 51826 [SmartThings] Direct Connect Is Listening On 192.168.0.45:8000

I do not have a Firewall setup on my MacBook Pro (macOS High Sierra 10.13.4) on which Node.js (v8.11.1) and homebridge (0.4.42) is running. The MacBook Pro is on the wireless network while the Smartthings hub is on the Ethernet network of the same router. I'm not sure if they must be on the same physical network or not. Here is the config.json file... `{ "bridge": { "name": "Homebridge", "username": "XX:XX:XX:XX:XX:XX", "port": 51826, "pin": "031-45-154" },

    "description": "Smartthings running on MacBook Pro.",
    "accessories": [ ],

"platforms": [{
            "platform": "SmartThings",
            "name": "SmartThings",
            "app_url": "https://graph.api.smartthings.com:443/api/smartapps/installations/",
            "app_id": "App ID Here",
            "access_token": "Access Token Here",
            "polling_seconds": 3600,
            "update_method": "direct",
            "direct_ip": "192.168.0.45",
            "direct_port": 8000,
            "api_seconds": 30
}]

} `

tonesto7 / homebridge-smartthings

Not Getting SmartThings Hub Communication Established #261