XIAO Esp32-S3 cannot connect to Wifi networks and cannot generate AP

[viniciusbarozzi]

Board

XIAO Esp32-S3

Device Description

Hardware Configuration

Standard board

Version

v2.0.14

IDE Name

Arduino IDE 2.2.1

Operating System

Win10

Flash frequency

80Mhz

PSRAM enabled

no

Upload speed

921600

Description

Hello, I have several XIAO Esp32-s3 and most of them cannot connect to any Wifi network or open AP for WifiManager...
I've already tried some solutions, but without success.

• Update Arduino board and IDE package
  -Board and IDE package downgrade
• Antenna replacement
• Several different Wifi networks
• Several .ino examples including WifiManager and simpler examples.
  And several other modifications.

I'm asking for your help so we can try to resolve this.

At first I'm starting to believe that it could be the Esp32 package for Arduino made available by Espressif....

Sketch

#include "WiFi.h"

// Replace with your network credentials
const char* ssid = "XXXXXXXXXX";
const char* password = "XXXXXXXXX";

void initWiFi() {
  WiFi.mode(WIFI_STA);
  WiFi.begin(ssid, password);
  WiFi.setTxPower(WIFI_POWER_8_5dBm);
  Serial.print("Connecting to WiFi ..");
  while (WiFi.status() != WL_CONNECTED) {
    Serial.print('.');
    delay(1000);
  }
  Serial.println();
  Serial.println(WiFi.localIP());
}

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

  // Set WiFi to station mode and disconnect from an AP if it was previously connected
  WiFi.mode(WIFI_STA);
  WiFi.disconnect();
  delay(100);

  initWiFi();
}

void loop() {
  
}

Debug Message

[   318][V][WiFiGeneric.cpp:97] set_esp_interface_ip(): ConfigurConnecting to WiFi ....[  1978][V][WiFiGeneric.cpp:362] _arduino_event_cb(): STA Disconnected: SSID: BarozziEngineering, BSSID: 28:ee:52:27:4b:0c, Reason: 2
[  1979][D][WiFiGeneric.cpp:1039] _eventCallback(): Arduino Event: 5 - STA_DISCONNECTED
[  1987][W][WiFiGeneric.cpp:1061] _eventCallback(): Reason: 2 - AUTH_EXPIRE
[  1993][D][WiFiGeneric.cpp:1081] _eventCallback(): WiFi Reconnect Running
[  2001][V][WiFiGeneric.cpp:97] set_esp_interface_ip(): Configuring Station static IP: 0.0.0.0, MASK: 0.0.0.0, GW: 0.0.0.0
..[  3718][V][WiFiGeneric.cpp:362] _arduino_event_cb(): STA Disconnected: SSID: BarozziEngineering, BSSID: 28:ee:52:27:4b:0c, Reason: 2
[  3718][D][WiFiGeneric.cpp:1039] _eventCallback(): Arduino Event: 5 - STA_DISCONNECTED
[  3726][W][WiFiGeneric.cpp:1061] _eventCallback(): Reason: 2 - AUTH_EXPIRE
[  3733][D][WiFiGeneric.cpp:1085] _eventCallback(): WiFi AutoReconnect Running
[  3741][V][WiFiGeneric.cpp:97] set_esp_interface_ip(): Configuring Station static IP: 0.0.0.0, MASK: 0.0.0.0, GW: 0.0.0.0
..[  5459][V][WiFiGeneric.cpp:362] _arduino_event_cb(): STA Disconnected: SSID: BarozziEngineering, BSSID: 28:ee:52:27:4b:0c, Reason: 2
[  5460][D][WiFiGeneric.cpp:1039] _eventCallback(): Arduino Event: 5 - STA_DISCONNECTED
[  5467][W][WiFiGeneric.cpp:1061] _eventCallback(): Reason: 2 - AUTH_EXPIRE
[  5474][D][WiFiGeneric.cpp:1085] _eventCallback(): WiFi AutoReconnect Running

Other Steps to Reproduce

No response

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

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

[Jason2866]

S3 is working fine in general, it is NOT the Arduino framework

[viniciusbarozzi]

@Jason2866 Do you have any idea what could be happening to cause these problems?

[SuGlider]

@viniciusbarozzi - does it work is WiFi.setTxPower(WIFI_POWER_8_5dBm); is commented out?

[viniciusbarozzi]

@SuGlider It - doesn't work even without reducing the TX power. This was one of the alternatives I tried to solve it.

[SuGlider]

I saw a similar issue in the past. It was related to the WiFi Security mode used in the WiFi Router/AP.
The minimum security mode for the network is WPA2.
Please try using this:

WiFi.setMinSecurity(WIFI_AUTH_WEP); // Lower min security to WEP.
// or
WiFi.setMinSecurity(WIFI_AUTH_WPA_PSK); // Lower min security to WPA.

Check this issue: #8558
Trouble shooting documentation: https://github.com/espressif/arduino-esp32/blob/master/docs/source/troubleshooting.rst#wi-fi

Another possible issue could be that the WiFi SSID and PWD are both case sensitive.
Check the upper/lower case letters in both.

[viniciusbarozzi]

@SuGlider - If I configure WiFi.setMinSecurity(WIFI_AUTH_WEP), will the esp be able to connect in WEP and WPA, or only in WEP?

[lbernstone]

minSecurity will have nothing to with setting up an AP.
What antenna do you have on here? Perhaps it is not properly impedance matched? If you remove the connector, put the device very close to your laptop wireless and set up an AP, can you see the SSID on the laptop?

[SuGlider]

@SuGlider - If I configure WiFi.setMinSecurity(WIFI_AUTH_WEP), will the esp be able to connect in WEP and WPA, or only in WEP?

Yes, this is the minimum. It will connect to any higher security level.
The problem is that if your WLAN is running WEP, by default, ESP32 won't connect to it, because it will demand a higher WiFi security level.

[SuGlider]

minSecurity will have nothing to with setting up an AP. What antenna do you have on here? Perhaps it is not properly impedance matched? If you remove the connector, put the device very close to your laptop wireless and set up an AP, can you see the SSID on the laptop?

Reading the issue example code, I understand that @viniciusbarozzi is setting up ESP32 as STA.

[viniciusbarozzi]

@lbernstone - I'm using esp as a STA, to connect to my router. The antenna I'm using is the standard one that comes with the Seeed Studio V1.2 board.