MR60 won't respond after a power outage

("Associated Products" line for this message chosen randomly, as the MR60 Mesh Router isn't coming up as an option.)

Thanks for the tips! I tried again unsuccessfully to reach the internet via a laptop wired into the MR60, with the MR60 wired to the modem and the modem showing an internet connection itself.

The ethernet cables are fine, usable in other capacities. A borrowed replacement unit responded promptly with everything else working.

The issue is within the MR60 itself; it's not seeing the internet out of the modem, and it's not recognizing the Nighthawk app via wifi. I simply can't reach it. A buddy with much more hardware experience had a go at reaching it and also gave up. You're getting this message through a replacement system.

The next inquiry asked after the source of the power outage, and my apologies for not noting that in the first message. A plumber was working just behind my residence among the roots of a 10-story-tall conifer. That tree was planted, ridiculously, next to most of the utility lines that feed part of my condo complex. (Cable connection to the modem and the modem and router themselves come to the building on the other side of the residence.) The plumber was trying to find and address a water leak, and had even marked out with the local gas and electric supplier where the adjacent power/gas lines were supposed to run. Except all that was 55 years ago, when the 10-story tree was a mere sapling placed in an incredibly stupid location. Today, the roots of that tree have gently nudged all those lines around, and the plumber went through the electrical line to roughly 60 units, as well as the gas line to my place specifically, in a hole in dirt that was saturated with water. Nobody was hurt, happily, but a platoon of utility crews got in some overtime. Oh, and it bricked my MR60 after 26 months' use. 

Thanks for pitching in, FURRYe38