Here's `esp32_https_test.c`, my minimal test case: #include "esp_crt_bundle.h" #include "esp_event.h" #include "esp_http_client.h" #include "esp_log.h" #include "esp_netif.h" #include "esp_system.h" #include "esp_tls.h" #include "esp_wifi.h" #include "freertos/FreeRTOS.h" #include "freertos/task.h" ...

Solved the problem. I'd like to pay it forward here to anybody else who may come across this issue in the future. Here's what I did. I built a minimal test case that (included below): 1. Connected to wifi 2. Fetched an https endpoint and return the status code 3. Scanning for wifi networks if wifi f...

I'm encountering an SSL handshake failure with my ESP32 devices (using ESP-IDF v5.1 with mbedTLS 3.3.0) when connecting to my server. This issue started occurring after the server's Let's Encrypt SSL certificate was renewed. When I upgrade to ESP-IDF v5.1.4, which uses mbedTLS 3.5.2, everything work...