New Wifi credentials are not saved after reboot, ESP8266 always take the same old credentials

[undee123]

Hello to everybody,

I've tried to get ESPAsync_WiFiManager to work by suing only the minimal requirements and coding:

#include <ESPAsync_WiFiManager.h> //https://github.com/khoih-prog/ESPAsync_WiFiManager
AsyncWebServer webServer(80);
DNSServer dnsServer;
 
 
void setup()
{
    // put your setup code here, to run once:
    Serial.begin(115200);
    while (!Serial)
        ;
    delay(200);
    Serial.print("\nStarting Async_AutoConnect_ESP8266_minimal on " + String(ARDUINO_BOARD));
    Serial.println(ESP_ASYNC_WIFIMANAGER_VERSION);
    ESPAsync_WiFiManager ESPAsync_wifiManager(&webServer, &dnsServer, "My-ESP8266");
    Serial.println("Connect to previously saved AP...");
    Serial.println( WiFi.SSID() );
    Serial.println( WiFi.psk() );
    ESPAsync_wifiManager.autoConnect("My-ESP8266");
 
    if (WiFi.status() == WL_CONNECTED)
    {
        Serial.print(F("Connected. Local IP: "));
        Serial.println(WiFi.localIP());
    }
    else
    {
        Serial.println(ESPAsync_wifiManager.getStatus(WiFi.status()));
        Serial.println("Can't connect! Enter WiFi config mode...");
        Serial.println("Restart...");
        ESP.reset();
    }
 
 
}
 
void loop()
{
}

Connecting to the ESP's access point for WiFi configuration works perfectly, and the ESP connects to the new WiFi, but after a reboot the connection does not work anymore and I have to configure it again.
I've discovered that the credentials the ESP uses after reboot are some old ones from a WiFi that doesn't exist anymore:

Serial.println( WiFi.SSID() );
Serial.println( WiFi.psk() );

Why does it not save the new credentials? Where the error?

Thank you for any help!!!

[khoih-prog]

What can you expect from the minimal version of examples?

It's not designed to save the Credentials, just to show how to shorten the code, certainly with loosing all the necessary features.

Check Doesn't save network credentials #58 and don't use any minimal example

I already deleted all minimal examples in latest releases v1.12.2

[undee123]

Hi Khoih,

thank you for your replay (and thank you of course for this library!!!), I'll try to find out which minimal code lines I need to get the credentials stored.

Greetings from Italy!

[undee123]

I'm sorry, I really can't find the error in my code.
Tried with "normal" WifiManager with this minimal code:

#include <WiFiManager.h> // https://github.com/tzapu/WiFiManager

void setup() {
    WiFi.mode(WIFI_STA);
    Serial.begin(115200);
    WiFiManager wm;

    bool res;
    res = wm.autoConnect("AutoConnectAP","password"); // password protected ap

    if(!res) {
        Serial.println("Failed to connect");
    } 
    else {
        Serial.println("connected...yeey :)");
    }
}

void loop() {
}

And here the SSID and Passphrase are stored. I really don't understand why, hope someone can help me please :-|