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Topic: no Wifi connection (Read 416 times) previous topic - next topic

stoni99

Board Uno Wifi Rev2 - None (Atmega4801), IDE 1.8.9., Firmware 1.2.1 installed, WifiNina 1.4.0 installed,

sketch AP-SimpleWebServer (arduino_secrets.h with SSid and 8char Pass)

Code: [Select]
Access Point Web Server
Creating access point named: WiFiTest
Creating access point failed


sketch ScanNetworks

Code: [Select]
Scanning available networks...
** Scan Networks **
number of available networks:0


........

MortenP

Hi Stoni - Same issue. Just two quick notes:
Scannetworks: is working.
And a new warning when compiling:


avrdude: WARNING: invalid value for unused bits in fuse "fuse5", should be set to 1 according to datasheet
This behaviour is deprecated and will result in an error in future version
You probably want to use 0xcd instead of 0xc9 (double check with your datasheet first).

stoni99

....And a new warning when compiling:


avrdude: WARNING: invalid value for unused bits in fuse "fuse5", should be set to 1 according to datasheet
This behaviour is deprecated and will result in an error in future version
You probably want to use 0xcd instead of 0xc9 (double check with your datasheet first).

I have the same message.

pert

avrdude: WARNING: invalid value for unused bits in fuse "fuse5", should be set to 1 according to datasheet
This behaviour is deprecated and will result in an error in future version
You probably want to use 0xcd instead of 0xc9 (double check with your datasheet first).
This is unrelated to the network issue you're having. You can safely ignore that warning.

Unfortunately, I don't have an idea of why the access point creation is failing. I can tell you that I ran the example sketch on my Uno WiFi Rev2 with WiFiNINA 1.4.0 and NINA firmware 1.2.1 and it works fine for me. Would you mind sharing a SECRET_PASS value you used with the AP_SimpleWebServer sketch so that I can exactly reproduce your configuration? You don't need to give me the original one you used if that's something you want to keep confidential. You can make up a throwaway password, but be sure to test it with the AP_SimpleWebServer sketch to verify that the AP creation still fails with the throwaway password.


Regarding the issue with ScanNetworks, I believe it will only work with 2.4 GHz WiFi. Make sure your WiFi router is not set to only provide a 5 GHz connection.

stoni99

#4
Apr 06, 2019, 08:35 am Last Edit: Apr 06, 2019, 08:38 am by stoni99
I use the original sketch:

Code: [Select]
/*
  WiFi Web Server LED Blink

  A simple web server that lets you blink an LED via the web.
  This sketch will create a new access point (with no password).
  It will then launch a new server and print out the IP address
  to the Serial monitor. From there, you can open that address in a web browser
  to turn on and off the LED on pin 13.

  If the IP address of your board is yourAddress:
    http://yourAddress/H turns the LED on
    http://yourAddress/L turns it off

  created 25 Nov 2012
  by Tom Igoe
  adapted to WiFi AP by Adafruit
 */

#include <SPI.h>
#include <WiFiNINA.h>
#include "arduino_secrets.h"
///////please enter your sensitive data in the Secret tab/arduino_secrets.h
char ssid[] = SECRET_SSID;        // your network SSID (name)
char pass[] = SECRET_PASS;    // your network password (use for WPA, or use as key for WEP)
int keyIndex = 0;                // your network key Index number (needed only for WEP)

int led =  LED_BUILTIN;
int status = WL_IDLE_STATUS;
WiFiServer server(80);

void setup() {
  //Initialize serial and wait for port to open:
  Serial.begin(9600);
  while (!Serial) {
    ; // wait for serial port to connect. Needed for native USB port only
  }

  Serial.println("Access Point Web Server");

  pinMode(led, OUTPUT);      // set the LED pin mode

  // check for the WiFi module:
  if (WiFi.status() == WL_NO_MODULE) {
    Serial.println("Communication with WiFi module failed!");
    // don't continue
    while (true);
  }

  String fv = WiFi.firmwareVersion();
  if (fv < "1.0.0") {
    Serial.println("Please upgrade the firmware");
  }

  // by default the local IP address of will be 192.168.4.1
  // you can override it with the following:
  // WiFi.config(IPAddress(10, 0, 0, 1));

  // print the network name (SSID);
  Serial.print("Creating access point named: ");
  Serial.println(ssid);

  // Create open network. Change this line if you want to create an WEP network:
  status = WiFi.beginAP(ssid, pass);
  if (status != WL_AP_LISTENING) {
    Serial.println("Creating access point failed");
    // don't continue
    while (true);
  }

  // wait 10 seconds for connection:
  delay(10000);

  // start the web server on port 80
  server.begin();

  // you're connected now, so print out the status
  printWiFiStatus();
}


void loop() {
  // compare the previous status to the current status
  if (status != WiFi.status()) {
    // it has changed update the variable
    status = WiFi.status();

    if (status == WL_AP_CONNECTED) {
      // a device has connected to the AP
      Serial.println("Device connected to AP");
    } else {
      // a device has disconnected from the AP, and we are back in listening mode
      Serial.println("Device disconnected from AP");
    }
  }
  
  WiFiClient client = server.available();   // listen for incoming clients

  if (client) {                             // if you get a client,
    Serial.println("new client");           // print a message out the serial port
    String currentLine = "";                // make a String to hold incoming data from the client
    while (client.connected()) {            // loop while the client's connected
      if (client.available()) {             // if there's bytes to read from the client,
        char c = client.read();             // read a byte, then
        Serial.write(c);                    // print it out the serial monitor
        if (c == '\n') {                    // if the byte is a newline character

          // if the current line is blank, you got two newline characters in a row.
          // that's the end of the client HTTP request, so send a response:
          if (currentLine.length() == 0) {
            // HTTP headers always start with a response code (e.g. HTTP/1.1 200 OK)
            // and a content-type so the client knows what's coming, then a blank line:
            client.println("HTTP/1.1 200 OK");
            client.println("Content-type:text/html");
            client.println();

            // the content of the HTTP response follows the header:
            client.print("Click <a href=\"/H\">here</a> turn the LED on<br>");
            client.print("Click <a href=\"/L\">here</a> turn the LED off<br>");

            // The HTTP response ends with another blank line:
            client.println();
            // break out of the while loop:
            break;
          }
          else {      // if you got a newline, then clear currentLine:
            currentLine = "";
          }
        }
        else if (c != '\r') {    // if you got anything else but a carriage return character,
          currentLine += c;      // add it to the end of the currentLine
        }

        // Check to see if the client request was "GET /H" or "GET /L":
        if (currentLine.endsWith("GET /H")) {
          digitalWrite(led, HIGH);               // GET /H turns the LED on
        }
        if (currentLine.endsWith("GET /L")) {
          digitalWrite(led, LOW);                // GET /L turns the LED off
        }
      }
    }
    // close the connection:
    client.stop();
    Serial.println("client disconnected");
  }
}

void printWiFiStatus() {
  // print the SSID of the network you're attached to:
  Serial.print("SSID: ");
  Serial.println(WiFi.SSID());

  // print your WiFi shield's IP address:
  IPAddress ip = WiFi.localIP();
  Serial.print("IP Address: ");
  Serial.println(ip);

  // print where to go in a browser:
  Serial.print("To see this page in action, open a browser to http://");
  Serial.println(ip);

}



arduino_secrets:

Code: [Select]
#define SECRET_SSID "WifiTest"
#define SECRET_PASS "12345678"









pert

I just tried it out with your same SSID and password and it still works fine for me. Hopefully someone with more knowledge than I will drop by and provide some helpful advice to solve the issue.

Do you have any wiring connected to your Uno WiFi Rev2?

stoni99

I have connected the USB Cable to PC.
I have try without connection to PC (Powerbank) - the same problem.

stoni99

I have try it by Arduino Web Editor - the same problem.

stoni99

How can I test if the Wifi module is defective?

pert

I don't know about a formal test but if you can update the firmware that does indicate the module is working to some extent (though it won't tell you anything about the network connectivity aspect).

kenharpster

I would try running the WiFiPing example.  In the setup method it tests to see if the WiFi module exists (line 37).

stoni99

The firmware update works.

WifiPing on line 37 shows not "Communication with WiFi module failed!"

kenharpster

The only thing I could suggest is to reflash the firmware, power cycle the board and retry the WiFiPing example again to see if that fixes it (another forum poster had a similar issue).  Short of that you may have to contact your vendor to arrange a replacement...

MortenP

Solved in my installation:
In 'AP_SimpleWebServer' Change: 'status = WiFi.beginAP(ssid, pass);'  to   'status = WiFi.beginAP(ssid);'

stoni99

Yes, the syntax is without "pass". See here.

I have already tested it: "Creating access point failed"

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