green blinking power light EX6120

I installed the extender and set up my network.  After that process, I was asked if I wanted to update the firmware.  I had to step away for a few minutes after that started.  Afterwards, I saw only a green blinking light -no router or device light.  I have turned off/on and get a solid amber boot light, then blinking green light.  I have tried resetting to factory settings and nothing happens, just blinking green light continues.  Pushing the WPS button, nothiing happens -no blinking WPS light.  I have tried plugging in by ethernet with no results -no Device light.

 

My guess is something happened in the firmware update. This device is NEW. 

 

I tried to follow the steps on: https://kb.netgear.com/000059633/How-to-upload-firmware-to-a-NETGEAR-router-using-TFTP-client

But I'm a Mac user and I don't know if I'm following correctly. Also, I don't know how to get the Router and DNS Address. 

 

PLEASE HELP!