ESP32 Forum

Hello!

I am trying to connect my esp32 to a WPA enterprise network (eduroam), but cannot get it to work. I am using the arduino IDE version 1.8.4 and the code below:
*
* This example shows how to use WPA2 enterprise
* Written by: Jeroen Beemster
* 12 July 2017
* Version 1.00
*/

#include "esp_wpa2.h"
#include <WiFi.h>

const char* ssid = "eduroam"; // your ssid
#define EAP_ID "youruserid"
#define EAP_USERNAME "youruserid" //removed for obvious reasons
#define EAP_PASSWORD "yourpassword"

void setup() {
Serial.begin(115200);
delay(10);

Serial.println();
Serial.print("Connecting to ");
Serial.println(ssid);

// WPA2 enterprise magic starts here
WiFi.disconnect(true);
esp_wifi_sta_wpa2_ent_set_identity((uint8_t *)EAP_ID, strlen(EAP_ID));
esp_wifi_sta_wpa2_ent_set_username((uint8_t *)EAP_USERNAME, strlen(EAP_USERNAME));
esp_wifi_sta_wpa2_ent_set_password((uint8_t *)EAP_PASSWORD, strlen(EAP_PASSWORD));
esp_wifi_sta_wpa2_ent_enable();
// WPA2 enterprise magic ends here


WiFi.begin(ssid);

while (WiFi.status() != WL_CONNECTED) {
delay(500);
Serial.print(".");
}

Serial.println("");
Serial.println("WiFi connected");
Serial.println("IP address: ");
Serial.println(WiFi.localIP());

}



/*
* everyhting below this, in loop(), is just a standard request to a webserver and nothing else than an example to show that is works.
*
*/

int value = 0;
const char* host = "lora.beemster.biz";

void loop() {
delay(5000);
++value;

Serial.print("connecting to ");
Serial.println(host);

WiFiClient client;
if (!client.connect(host, 80)) {
Serial.println("connection failed");
return;
}

// We now create a URI for the request
String url = "/wpa2successmesage.php";

Serial.print("Requesting URL: ");
Serial.println(url);

// This will send the request to the server
client.print(String("GET ") + url + " HTTP/1.1\r\n" +
"Host: " + host + "\r\n" +
"Connection: close\r\n\r\n");
unsigned long timeout = millis();
while (client.available() == 0) {
if (millis() - timeout > 5000) {
Serial.println(">>> Client Timeout !");
client.stop();
return;
}
}

// Read all the lines of the reply from server and print them to Serial
while(client.available()) {
String line = client.readStringUntil('\r');
Serial.print(line);
}

Serial.println();
Serial.println("closing connection");
}

I get these errors:

C:\Users\s161743\Documents\Arduino\sketch_sep22a\sketch_sep22a.ino: In function 'void setup()':

sketch_sep22a:29: error: too few arguments to function 'esp_err_t esp_wifi_sta_wpa2_ent_enable(const esp_wpa2_config_t*)'

esp_wifi_sta_wpa2_ent_enable();

^

In file included from C:\Users\s161743\Documents\Arduino\sketch_sep22a\sketch_sep22a.ino:8:0:

C:\Users\s161743\Documents\Arduino\hardware\espressif\esp32/tools/sdk/include/esp32/esp_wpa2.h:45:11: note: declared here

esp_err_t esp_wifi_sta_wpa2_ent_enable(const esp_wpa2_config_t *config);

^

Multiple libraries were found for "WiFi.h"
Used: C:\Users\s161743\Documents\Arduino\hardware\espressif\esp32\libraries\WiFi
Not used: C:\Program Files (x86)\Arduino\libraries\WiFi
Using library WiFi at version 1.0 in folder: C:\Users\s161743\Documents\Arduino\hardware\espressif\esp32\libraries\WiFi
exit status 1
too few arguments to function 'esp_err_t esp_wifi_sta_wpa2_ent_enable(const esp_wpa2_config_t*)'


Can somebody please help me fix this?

Thanks!

If you have multiple libraries installed, the compiler doesn't know which one to choose.

A definite fix is removing the other libraries and keep only the esp32 (I tried it and your code compiling fine on my system).

But if there are any ways to keep all libraries I would like to know how too.

Hello,

I tried removing the wifi-library but was not able to compile the code. I still got the error:

sketch_sep25a:29: error: too few arguments to function 'esp_err_t esp_wifi_sta_wpa2_ent_enable(const esp_wpa2_config_t*)'

What versions of each libraries are you using? Could you also please send a link where I can find your version?

Thanks!

I solved it by replacing:

esp_wifi_sta_wpa2_ent_enable();

with:
esp_wpa2_config_t config = WPA2_CONFIG_INIT_DEFAULT();
esp_wifi_sta_wpa2_ent_enable(&config);

I also added my university email as EAP id, then I was able to connect.

This worked for me too. Thank you!
I set my email address for both EUP_ID and EAP_USERNAME.
I also had to reset the ESP32 devboard a number of times to get a successful association....

Hello

I'm struggling to connect to my university eduroam network with the code provided. I see my esp32 devices rebooting constantly with the error:

Guru Meditation Error of type LoadProhibited occurred on core 1. Exception was unhandled.
Register dump: blah blah blah etc

Rebooting...

Just in case the looping was a power issues, I've tried using a 2A power supply and it still does the boot loop.

Usually the reboot occurs after 2 dots during while (WiFi.status() != WL_CONNECTED) loop - meaning after 1 second.
But occasionally I see three dots. That's why I suspected something like power issues...

My laptop and phone both connect fine, the connection details say that eduroam authentication is Tunnelled TLS and inner authentication is MSCHAPv2, and that no CA certificate is required.

Any ideas what I'm doing wrong? Why the constant rebooting?

Thanks!

I'm having the same problems as gWhizz. Any help would be GREAT!!!

Thanks,
Bradders

i am having the same problem as gwizz also, any help would be appriciated

Just to say that I've struggled again with this, but still no joy.

What am I doing differently to those who have got a connection?!?

Same problem as gwhizz. Core Debug Level: "Verbose". Serial reads:
Arduino 1.8.5, WiFi 1.2.7, newest espressif libraries (i think). Trying to connect to a normal WPA2 doesn't crash it.

Found something in parallel to the topic, perhaps a working alternative:
https://github.com/espressif/esp-idf/bl ... ise_main.c

Tried commenting out:


but got stuck with: