ESP32-WROOM-32 fails to connect WiFi. Error "E (xxxx) wifi:Set status to INIT"

[DespyZx]

I have an ESP32-WROOM-32 module which I was trying to connect it with WiFi, but couldn't. Reading and writing data to a device (sensor, etc) has no problem. But only connecting to WiFi, it didn't work.

E (xxxx) wifi:Set status to INIT
The error above only is shown when I tried to connect the ESP32 with Hotspot. At the other hand, when I tried to connect it with WiFi router, it didn't show any error yet connect successfully.

I had tried to add WiFi STA mode on the code, and also try to figure out the error. But all I could find are only: WL_DISCONNECT (on Router's WiFi and Hotspot) and WL_CONNECT_FAILED (on Hotspot).

Anybody has an idea on this?

[Jason2866]

@DespyZx The "Hotspot" is generated from? Can you provide a short example code, where the problem can be reproduced?

[DespyZx]

The hotspot is generated from Mobile Phone.

The problem was found using usual code to connect to WiFi.
This is the code that I was using.

#include <WiFi.h>
#define LED_BUILTIN 2

// Set the IP address, gateway, and subnet mask
IPAddress ip(192, 168, 100, 100); // Replace with your desired static IP address
IPAddress gateway(192, 168, 100, 1); // Replace with your gateway address
IPAddress subnet(255, 255, 255, 0); // Replace with your subnet mask

void setup() {
  WiFi.disconnect(true);
  WiFi.mode(WIFI_STA);
  pinMode(LED_BUILTIN, OUTPUT);
  digitalWrite(LED_BUILTIN, LOW);
  Serial.begin(115200);
  Serial.println("Scanning available networks...");
  int numOfNetworks = WiFi.scanNetworks();
  Serial.print("Number of available networks: ");
  Serial.println(numOfNetworks);

  for (int i = 0; i < numOfNetworks; i++) {
    Serial.print(i + 1);
    Serial.print(": ");
    Serial.println(WiFi.SSID(i));
  }
  // Set the static IP address, gateway, and subnet mask
  if (!WiFi.config(ip, gateway, subnet)) {
    Serial.println("Failed to configure static IP address.");
  }

  // Wait for connection
  int wait = 0;
  while (WiFi.status() != WL_CONNECTED) {
    // Connect to WiFi
    WiFi.begin("SSID", "Password");
    wait++;
    digitalWrite(LED_BUILTIN, HIGH);
    delay(100);
    digitalWrite(LED_BUILTIN, LOW);
    delay(100);
    delay(5000);
    Serial.println("Connecting to WiFi...");
    if(wait == 5)
    {
      WiFi.disconnect(true);
      Serial.println("Reconnecting...");
      wait = 0;
      ESP.restart();
    }
  }


}

void loop() {
  // Your code goes here
  digitalWrite(LED_BUILTIN, HIGH);
  Serial.println("Test!");
}

These are all the Libraries that I was using:

• WiFi101 by Arduino Version 0.16.1
• EspSoftwareSerial by Dirk Kaar, Peter Lerup
• LiquidCrystal by Arduino, Adafruit
• ATtinySerialOut by Armin Joachimsmeyer
• Adafruit FONA Library by Adafruit
• Adafruit MQTT Library by Adafruit
• Adafruit SleepyDog Library by Adafruit
• Adafruit Unified Sensor by Adafruit
• DHT sensor library by Adafruit
• LiquidCrystal I2C by Frank de Brabander
• ThingSpeak by MathWorks [email protected]
• arduino-display-lcdkeypad by [email protected]
• spin-timer by Dieter Niklaus [email protected]

These libraries might not be responsible for the error happened. ( I tried to reproduce the error on another device with different libraries, but the error still occurs )

Fyi, if I remove the 'IPAddress' codes on the codes above, the error still happens.

These are the URL I use for the additional board.
"http://arduino.esp8266.com/stable/package_esp8266com_index.json,https://raw.githubusercontent.com/espressif/arduino-esp32/gh-pages/package_esp32_index.json"
The board I was using was "ESP32 Dev Module"

Hope this could answer your question.

[Jason2866]

Which phone Exactly? Had this problem in the past. Using a different phone from an other brand solved.

[DespyZx]

I used POCO and Realme, both had the same issue. Which brand were you using?

[Jason2866]

No problem with Samsung A52.

[DespyZx]

I had tried with iPhone and Vivo (if I'm not mistaken), the error "INIT" doesn't appear, but it couldn't be connected to the WiFi anyway.

[mrengineer7777]

Using WiFi.config(ip, gateway, subnet) to set a static IP might make some APs unhappy. I'm not familiar with WF101 library. Can you try your project without it? Your code example should work with #include <WiFi.h>.

[DespyZx]

It couldn't work either.

[gorki2055]

I am also getting the same problem. Did you find any solution?

[DespyZx]

Nope, it still occurs.

[kalindkaria]

I am too facing the similar issue. It connects to phone hotspot but not when the hotspot is generated by another ESP8266 module.

Kindly suggest some solution.