@vhorgen - Can you access the Web Administration Interface of the Nucleus+ by using a web browser on your Mac and entering the IP address of your Nucleus+ into it? If so, please post a screenshot of the WAI.
Your router should display a list of the IP addresses of all active devices in your network. Is the Nucleus in that list?
If it isn’t, then the next step would be to connect a monitor or TV to the HDMI connector on the Nucleus and post a photo of any messages that are displayed.
Thanks for writing in - you’re in good hands with your issue here!
@Geoff_Coupe’s above reply will likely give us a good indication of where the issue may lie with your Nucleus.
There are a few different ways to access the webUI of your Nucleus, all of which are better broken down in the help article shared earlier:
Let us know if you’re able to see the Nucleus online within your local network, and what you see when you Plug in a monitor via HDMI to the device (when online and hardwired directly to your router.)