I'm skipping what that is but try a power cycle to the thing the Ethernet is connected to at the other end.
If that doesn't fix it, move the Ethernet cable to another port on the router or switched hub.
I have had Ethernet to my PS4/PC for a few months now. It is way up o the second floor of the house, and the router is in the basement (wire was ran through walls during construction but only recently did I care to use it). I went away for a week with no issues. I came home and it is not working for me. I have three other brothers using Ethernet and they have had no issues within this past week and didn't go near my setup. Sometime it will send a signal so that it registers in the computer, but it still say no internet access, but for the most part it just doesn't work. I've tried many different cords from the wall to my PC, I redid the wiring for the wall mount, I put a new wire at the router, yet nothing works. I checked the Ethernet by putting my brothers in my PC, and it worked. Any clue what is wrong? Or what I should do to try to fix it. I'm beginning to get very frustrated! Thanks in advance.