@mweiss 

Hard reset the unit by holding the reset for 30 seconds.  Look on the bottom of the device there should be a Management URL and admin credentials printed on the product label.  If after reset the power light is still blinking green you may have a bricked device.  The steps in method 1 of this FAQ might help.  If not then you might be forced to buy a new router. 

  @Carl I came to find out that the light was steady green after I brought it into my office and plugged it in with a shorter cat6 cable.

Then I observed that it appears SSID "OUTSIDE" on my wifi list, so I connected to it with the laptop and I was able to adopt the AP and see that it was in fact, online.

I thought the normal status was solid blue light, but I may be confusing it with a different AP I had before this one.

Ultimately, the outage was caused by a corroded CAT6 jack on the wall outside. The power pins had corroded badly, while the rest of the pins were shiny.

I replaced the jack with a new one.

  @mweiss