Cant' connect to network. OK in release 1.0.6

[fanfanlatulipe26]

Board

ESP32 Dev Kit

Device Description

nothing

Hardware Configuration

nothing

Version

v2.0.2

IDE Name

Arduino IDE 1.8.19

Operating System

Windows 10

Flash frequency

80

PSRAM enabled

no

Upload speed

921600

Description

Can't connect to a wifi network. STA mode.
Standard example HelloServer in for the library WebServer fails.

Exactly the same code compiled with 1.0.6 works perfectly.

But it seems that the results depend on the network itself. I have a demo working perfectly on an other network at home and this demo fails on the network I use this day.(of course after updating ssid and password ;-=)
Network uses WPA (TKIP + AES)
.

Sketch

#include <WiFi.h>
#include <WiFiClient.h>
#include <WebServer.h>
#include <ESPmDNS.h>

const char* ssid = "Alice_Maman";
const char* password = "xxxxxxxxxxxxxxxx";

WebServer server(80);

const int led = 2;

void handleRoot() {
  digitalWrite(led, 1);
  server.send(200, "text/plain", "hello from esp32!");
  digitalWrite(led, 0);
}

void handleNotFound() {
  digitalWrite(led, 1);
  String message = "File Not Found\n\n";
  message += "URI: ";
  message += server.uri();
  message += "\nMethod: ";
  message += (server.method() == HTTP_GET) ? "GET" : "POST";
  message += "\nArguments: ";
  message += server.args();
  message += "\n";
  for (uint8_t i = 0; i < server.args(); i++) {
    message += " " + server.argName(i) + ": " + server.arg(i) + "\n";
  }
  server.send(404, "text/plain", message);
  digitalWrite(led, 0);
}

void setup(void) {
  pinMode(led, OUTPUT);
  digitalWrite(led, 0);
  Serial.begin(115200);
  WiFi.mode(WIFI_STA);
  WiFi.begin(ssid, password);
  Serial.println("");

  // Wait for connection
  while (WiFi.status() != WL_CONNECTED) {
    delay(500);
    Serial.print(".");
  }
  Serial.println("");
  Serial.print("Connected to ");
  Serial.println(ssid);
  Serial.print("IP address: ");
  Serial.println(WiFi.localIP());

  if (MDNS.begin("esp32")) {
    Serial.println("MDNS responder started");
  }

  server.on("/", handleRoot);

  server.on("/inline", []() {
    server.send(200, "text/plain", "this works as well");
  });

  server.onNotFound(handleNotFound);

  server.begin();
  Serial.println("HTTP server started");
}

void loop(void) {
  server.handleClient();
  delay(2);//allow the cpu to switch to other tasks
}

Debug Message

Print debug when example is compiles with 2.0.2:
rst:0x1 (POWERON_RESET),boot:0x3 (DOWNLOAD_BOOT(UART0/UART1/SDIO_REI_REO_V2))
waiting for download

[   165][V][WiFiGeneric.cpp:272] _arduino_event_cb(): STA Started
[   167][V][WiFiGeneric.cpp:96] set_esp_interface_ip(): Configuring Station static IP: 0.0.0.0, MASK: 0.0.0.0, GW: 0.0.0.0
[   167][D][WiFiGeneric.cpp:831] _eventCallback(): Arduino Event: 2 - STA_START

....[  2236][V][WiFiGeneric.cpp:289] _arduino_event_cb(): STA Disconnected: SSID: Alice_Maman, BSSID: 00:00:00:00:00:00, Reason: 201
[  2236][D][WiFiGeneric.cpp:831] _eventCallback(): Arduino Event: 5 - STA_DISCONNECTED
[  2244][W][WiFiGeneric.cpp:852] _eventCallback(): Reason: 201 - NO_AP_FOUND
[  2252][V][WiFiGeneric.cpp:96] set_esp_interface_ip(): Configuring Station static IP: 0.0.0.0, MASK: 0.0.0.0, GW: 0.0.0.0
....[  4317][V][WiFiGeneric.cpp:289] _arduino_event_cb(): STA Disconnected: SSID: Alice_Maman, BSSID: 00:00:00:00:00:00, Reason: 201
[  4317][D][WiFiGeneric.cpp:831] _eventCallback(): Arduino Event: 5 - STA_DISCONNECTED
[  4325][W][WiFiGeneric.cpp:852] _eventCallback(): Reason: 201 - NO_AP_FOUND
[  4333][V][WiFiGeneric.cpp:96] set_esp_interface_ip(): Configuring Station static IP: 0.0.0.0, MASK: 0.0.0.0, GW: 0.0.0.0

======================
Print debug when example is compiles with 1.0.6

rst:0x1 (POWERON_RESET),boot:0x3 (DOWNLOAD_BOOT(UART0/UART1/SDIO_REI_REO_V2))
waiting for download
[D][WiFiGeneric.cpp:374] _eventCallback(): Event: 0 - WIFI_READY
[D][WiFiGeneric.cpp:374] _eventCallback(): Event: 2 - STA_START

......[D][WiFiGeneric.cpp:374] _eventCallback(): Event: 4 - STA_CONNECTED
[D][WiFiGeneric.cpp:374] _eventCallback(): Event: 7 - STA_GOT_IP
[D][WiFiGeneric.cpp:419] _eventCallback(): STA IP: 192.168.0.16, MASK: 255.255.255.0, GW: 192.168.0.254
.
Connected to Alice_Maman
IP address: 192.168.0.16
MDNS responder started
HTTP server started

Other Steps to Reproduce

In the IDE I select the board "ESP32 Dev Module"

I have checked existing issues, online documentation and the Troubleshooting Guide

• I confirm I have checked existing issues, online documentation and Troubleshooting guide.

[Jason2866]

WPA really? Not WPA2. WPA is highly insecure. Do not use anymore.

[fanfanlatulipe26]

WPA is at least more secure than WEP.
The box from my internet provider does not offer WPA2.

[Jason2866]

Open a ticket to get the box changed. It is a high security risk
Probably this setting CONFIG_MBEDTLS_RC4_DISABLED=y in sdkconfig is responsible for not working WPA anymore. WPA uses the insecure RC4.
To disable is a good decision!

[pipi61]

Try change to wpa2 on your router

[Jason2866]

WPA is at least more secure than WEP. The box from my internet provider does not offer WPA2.

@pipi61

[fanfanlatulipe26]

Back home, I ran some tests with my usual internet box where I have more choice with the authentication scheme and I confirm that It appears that WPA is no longer supported in 2.0.2.
In my opinion this choice is more than questionable:

• First of all it introduces incompatibility / regression with 1. 0.6
• It is up to the user to choose the level of security. It is his own responsibility.
• It introduces more discrepencies with the latest documentations

Even the latest doc from Espressif states "Various security modes for the above (WPA, WPA2, WEP, etc.)" and from arduino-esp32 support documentation "Security modes (WPA, WPA2, WEP, etc.)"

[me-no-dev]

"fix" is coming. More of an option to allow WPA actually :)