Dhcp not working on esp32 using arduino

Projects Networking, Protocols, and Devices
1

Below is the code I used

#include <SPI.h>
#include <WiFi.h>
//#include <EthernetENC.h>
#include <UIPEthernet.h>

const char* ssid = "hkiot";
const char* password = "10818117A*";

byte mac[] = { 0x1d, 0x0c, 0xd8, 0x0c, 0x55, 0xee };

char server[] = "www.google.com";    // name address for Google (using DNS)
#define CLIENT_ID       "JEZIEL_78233"

IPAddress ip(192, 168, 3, 177);
IPAddress myDns(192, 168, 3, 1);

void setup() {
  Serial.begin(115200);
  //setup_wifi();
  SPI.begin(25, 32, 33, 27);
  Ethernet.init(27);
  Serial.println(Ethernet.hardwareStatus());
  Serial.println(Ethernet.linkStatus());
  Serial.println("Initialize Ethernet with DHCP:");
  if (Ethernet.begin(mac) == 0) {
    Serial.println("Failed to configure Ethernet using DHCP");
    // Check for Ethernet hardware present
    if (Ethernet.hardwareStatus() == EthernetNoHardware) {
      Serial.println("Ethernet shißeld was not found.  Sorry, can't run without hardware. :(");
      while (true) {
        delay(1); // do nothing, no point running without Ethernet hardware
      }                                                                                                                 
    }
    if (Ethernet.linkStatus() == LinkOFF) {
      Serial.println("Ethernet cable is not connected.");
    }
    // try to congifure using IP address instead of DHCP:
    Ethernet.begin(mac, ip, myDns);
  } else {
    Serial.print("  DHCP assigned IP ");
    Serial.println(Ethernet.localIP());
  }
}

void loop() {
}

This is the result of the above.

rst:0x1 (POWERON_RESET),boot:0x12 (SPI_FAST_FLASH_BOOT)
configsip: 0, SPIWP:0xee
clk_drv:0x00,q_drv:0x00,d_drv:0x00,cs0_drv:0x00,hd_drv:0x00,wp_drv:0x00
mode:DIO, clock div:1
load:0x3fff0018,len:4
load:0x3fff001c,len:1216
ho 0 tail 12 room 4
load:0x40078000,len:10944
load:0x40080400,len:6388
entry 0x400806b4
10
1
Initialize Ethernet with DHCP:
Failed to configure Ethernet using DHCP

Schematic_sample_2022-09-14
Schematic_sample_2022-09-141169×827 95.7 KB

This circuit is a simplified version of only the Ethernet circuit in which enc28j60 is used in the circuit I made.

The code and circuit above worked normally once before.

I can't find the cause, so I'd like to ask for your help. thank you

2

Looks like hardwareStatus() returned 10 and linkStatus() returned 1. What I would do is examine the UIPEthernet library to see what those two values mean.

3

Sniff on the network and post what packets you see there.

A good idea is also to set the log level to LOG_DEBUG_V1. Then you see on the serial what actually happens and what the last state is the DHCP client reaches.

4

This topic was automatically closed 180 days after the last reply. New replies are no longer allowed.