KC868-A64 REV 1.3 - Ethernet is not Working

[catrielmuller]

I bought 3 board KC868-A64 REV 1.3 and in one of them the Ethernet port it's not working.

I tried using exactly the same ESPHome Config, Eth Cable, Power on this one than the another two and this one is not working properly.

Code:

[D][esp32.preferences:114]: Saving 1 preferences to flash...
[D][esp32.preferences:143]: Saving 1 preferences to flash: 0 cached, 1 written, 0 failed
[I][app:029]: Running through setup()...
[C][ethernet:029]: Setting up Ethernet...
[I][ethernet:138]: Starting ethernet connection
[W][ethernet:155]: Connecting via ethernet failed! Re-connecting...
[W][ethernet:155]: Connecting via ethernet failed! Re-connecting...
[W][ethernet:155]: Connecting via ethernet failed! Re-connecting...
[W][ethernet:155]: Connecting via ethernet failed! Re-connecting...

This is the basic config that I'm using:

Code:

esphome:
  name: test
  friendly_name: test

esp32:
  board: esp32dev
  framework:
    type: arduino

logger:

api:
  encryption:
    key: "wsIfuavsl9mVb28lgRojJDQNGvabMa67BszAFCmc37s="

ota:
  password: "d0a70c2dc2ca1d1325dea05d43c39eb0"

ethernet:
  type: LAN8720
  mdc_pin: GPIO23
  mdio_pin: GPIO18
  clk_mode: GPIO17_OUT
  phy_addr: 0

What it's the process to do a RMA?