Problem With Ethernet Port

[rferreras]

In the end you can solve it using the following code, I share it in case someone needs it.

Code:

#include "Arduino.h"
#include "PCF8574.h"
#include <Wire.h>
#include <WiFi.h>
#include <SPI.h>
#include <Ethernet.h>
#include <PubSubClient.h>
#include <ArduinoJson.h>
#include "esp_system.h"
#include "esp_task_wdt.h"
#include <U8g2lib.h>

#define INT_GPIO 41
#define MISO_GPIO 40
#define MOSI_GPIO 44
#define SCK_GPIO 4
#define CS_GPIO 39

byte mac[] = { 0xDE, 0xAD, 0xBE, 0xEF, 0xFE, 0xED };

EthernetClient ethClient;
PubSubClient client(ethClient);

void(* resetFunc) (void) = 0;

void setup() {
  while (!Serial && (millis() < 5000));

  delay(500);

   // Configurar SPI con los pines especificados
  SPI.begin(SCK_GPIO, MISO_GPIO, MOSI_GPIO, CS_GPIO);

  // Inicializar la conexión Ethernet
  Ethernet.init(CS_GPIO);  // Inicializar con el pin CS
  Ethernet.begin(mac);

  // Esperar a que se asigne una dirección IP
  if (Ethernet.hardwareStatus() == EthernetNoHardware) {
    Serial.println("Ethernet shield was not found.");
    while (true) {
      delay(1); // No continuar
    }
  }
  if (Ethernet.linkStatus() == LinkOFF) {
    Serial.println("Ethernet cable is not connected.");
  } else {
    Serial.print("Ethernet IP: ");
    Serial.println(Ethernet.localIP());
  }
 

  //Inicializar el Watchdog Timer 
  esp_task_wdt_config_t config;
  config.timeout_ms = 30000; // Establece el tiempo de espera a 30 segundos
  esp_task_wdt_init(&config);
  esp_task_wdt_add(NULL);
}

void loop() {

  esp_task_wdt_reset();
}

Now my problem is trying to enable the Watchdog, it is not respecting the function esp_task_wdt_reset() since I am constantly resetting the card, if anyone has any example of Watchdog on the esp32 S3 I would appreciate it.