Board

ESP32

Device Description

DOIT ESP32 DEVKIT V1

Hardware Configuration

almost all GPIO are connected

Version

v3.0.5

IDE Name

Arduino IDE

Operating System

Windows

Flash frequency

80 MHz

PSRAM enabled

no

Upload speed

921600

Description

With recv() in MSG_DONTWAIT the errno is not reset when recv() returns zero, not because the connection is terminated, but because there is no data. My solution is to reset errno before call to recv(). The full explanation is in 'https://forum.arduino.cc/t/errore-nel-file-appdata-local-arduino15-packages-esp32-hardware-esp32-3-0-x-libraries-network-src-networkclient-cpp/1317872/3'

Sketch

any web server

Debug Message

remote connection closed

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.