Connect to wifi works only without password (Problem around WPA security)

Question

I have an ESP32 Joy-it - SBC NodeMCU-ESP32 that should be use with board "ESP32 Dev Module". IDE says : Chip is ESP32-D0WDQ6 (revision v1.0).

Website product: https://joy-it.net/en/products/SBC-NodeMCU-ESP32

When I make a wifi scan, I find my AP, but if I connect with SSID + Password (both WPA (Internet box router - Freebox Crystal France) and WPA2 Personal (Xiaomi A2 Lite)), it doesn't work.

So I tried to make an AP without password on my phone, and ESP32 can connect without problem.

To do that, I used the default sketch "Wifi -> Wifi Client". My SSID and my password contain only letters/numbers (Only ASCII chars).

I tried to burn the bootloader, but nothing change.

I am using :

• IDE Arduino 2.2.1
• esp32 by espressif 2.0.14

Does somebody have an idea ?

• jsotola: I tried to burn the bootloader ... what does that mean?
• Servuc: Click on Tools -> Burn bootloader in Arduino IDE GUI :)
• KIIV: Have you tried older esp32 core?

Answer 1

Solution, I'm using an old Freebox, which has only Open or WPA security,

Just add : WiFi.setMinSecurity(WIFI_AUTH_WPA_PSK); to allow connection to my router.

For people with WEP security, just use WIFI_AUTH_WEP

• timemage: "which has only Open or WPA security" ... WIFI_AUTH_WEP. You meant "open or WEP" right?
• Servuc: In fact, I copy paste line before move minmal security to wpa, my bad