Hi. I'm new so sorry if this post is in the wrong place. My hub is found during setup, but when I click on it to set it up it times out. I live in an apt where every connected mac address must be white-listed. I added the MAC of the hub and reset router and hubitat. I have several things running through a switcher before the router. I only have one network light on the switcher where hubitat is connected. I never see 2 lights on that at any point in setup. I tried to manually ping the ip address displayed in setup of my hub and get no response. I tried updating firmware but it times out. I have pressed the reset on bottom of hub. It seems like my hub is not communicating. Could the label be wrong for the mac address on my hub? is there a way I can manually connect via dosprompt and get the mac and ip address to know for sure whats in the hub? anyway I switched from SmartThings thinking this would be so much better and hours later...... it's frustration so far. I have no ability to manage my apt. provided router to even see connected devices. I can only setup the MAC whitelist, so I'm limited what I can do in that regard. My Smartthings hub connected no problem. I even disabled antivirus and firewall. Any help would be greatly appreciated. Since I cant get a ping response I believe the device is defective.
I'm not sure if there are any documented cases of the label being wrong, but I suppose anything is possible. From a command prompt, arp -a will likely show you a list of other devices on your LAN with their IP and MAC addresses, but with the apparently-wonky setup your apartment network has, it's possible that won't work for you. (If you have any friends who'd let you connect it to their router/network for a few minutes so you can verify its MAC address that way--and perhaps verify that the hub does, in fact, work--that might be easier.)
Other thing: what color is the LED on the hub? It should be green, which means the platform (hub software) has finished loading. If it's blue, it's either still loading or got stuck. You may indeed have a defective hub in that case. The other color you might see is red, but that should only happen if you shut the hub down yourself, and it means it's safe to unplug.
I know this will sound like a DOH suggestion, but have you checked, double-checked, and triple-checked that you're putting in the MAC correctly?
Over the years I've shot myself in the foot more than once w/an "obvious" typo that I just didn't see at first for some reason... 
green light on the hub. I can't even get a ping reply from dos prompt on it's ip address, so I'm starting to think it's a comm port issue. I just tried a different ethernet cable and that didn't help either. Thanks for your assistance.
Are you using the power supply the hub came with?
Yes I've checked it more than 5 times. Just checked it again before replying so I wouldn't have to come back later and admit I made a simple error. I cant ping to the ip address in dos? seems like the hub just isn't communicating. Bad comm port?
yes. I did try another power cable. I have a solid green light. It appears to power up ok. Only 1 comm light on my switcher port for the hub and I can't get a ping response.
Did you purchase the hub new or used (Amazon Warehouse or eBay etc.)?
Try changing the network speed under Settings / Network Setup.
I just did an arp -a and the mac address associated with the ip address shown as my hub is totally different than what is printed on my hub label. It says dynamic also. I would expect a mac to be a static
Sounds like you have an IP conflict.
Turn off the hub and try the arp -a again.
It should be, but if your apartment (or you yourself) happens to be using some "wifi to wired" bridige or other unusual configuration, I've seen them report different MAC addresses than the real MAC address for the device. Someone who knows more about me than how these work will have to comment about the "why" part. 
(Or if there's a good way to get Hubitat to play well with it.)
The IP conflict idea mentioned above is another possibility. I might try the hub first on another network just to make sure you know it's good, if that's possible for you to do, but it sounds like there may be some unusual setup on your network that is causing this. SmartThings wouldn't have cared because nothing connected locally--even using the app in your own home went through the cloud. Hubitat is more like a router or network printer you may have used, where you're connecting to its web-based admin interface locally and directly in most cases (though they do have an optional cloud admin subscription, one use case for which is users who use the cell modem feature where local isn't even possible...or anyone who can't or doesn't want to set up a VPN who wants administrative access remotely).
I unplugged the hub power and i got the same mac address listed next to the hub ip address. Maybe thats a default address when nothing is assigned?
That means there is another device with that IP address. What is the address that you see for the hub?
What are the first 3 parts of the MAC address (xx-xx-xx-yy-yy-yy) only the xx-xx-xx part.
This is the owner of that MAC address range. https://nomadix.com
Looks like they are the ones providing service to your unit. You are now officially out of my expertise (as if I have any.)
thanks for looking into it. I'm definitely not a network person. I will try hooking it up somewhere else and see what happens. Thanks again.
Let us know what you learn.
I bought it new.
