sntp problem with 3.0

[wcwuttke]

Board

DEVKIT V1, ESP32 Dev Module

Device Description

Clone ESP32 DEVKIT V1, Freenove ESP32-WROOM

Hardware Configuration

no

Version

v3.0.1

IDE Name

Arduino IDE

Operating System

Windows 11 and MACOS 14.5

Flash frequency

80 MHz

PSRAM enabled

no

Upload speed

921600

Description

Never gets time adjustment from BTP almost every time. Only once in a while successfully gets the time adjustment. Worked fine in version 2.0.17.

Sketch

ESP32 SimpleTime example.

Debug Message

no error message

Other Steps to Reproduce

Work fine in version 2.0.17 but not in 3.0 or above

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

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

[wcwuttke]

Should be NTP - not BTP.

[SuGlider]

Issue confirmed. This is a a problem with esp_sntp_servermode_dhcp(1); // (optional) call.

[SuGlider]

@wcwuttke - Please check PR #9884 that comments out esp_sntp_servermode_dhcp(1); // (optional) code line in the example.

[wcwuttke]

I commented out esp_sntp_servermode_dhcp(1); and it appeared to fix the problem. I rebooted the board three times successfully. However, the fourth and fifth time, got "No time available (yet)". Rebooted again and got the time. Rebooted again and got "No time available (yet)". Rebooted again and got the time. It looks like the problem is still there intermittently.

[SuGlider]

This is interesting... I was getting 100% success while I had debug output as Verbose.
But when I tried it with no debug output I also see the issue youo are reporting about the problem being still there.

It may also be related to another fix from the https://github.com/espressif/arduino-esp32/pull/9862/files
It seems that it must wait for the WiFi interface to really get started.

Indeed removing esp_sntp_servermode_dhcp(1); is not the fix.

I have applied the fix from #9862 here and it seems to improve the success rate to 8 out of 10.

Could you apply the change to libraries/WiFi/src/STA.cpp into the begin() function?

bool STAClass::begin(bool tryConnect) {
  if (!WiFi.enableSTA(true)) {
    log_e("STA enable failed!");
    return false;
  }
  if (!waitStatusBits(ESP_NETIF_STARTED_BIT, 1000)) {
    log_e("Failed to start STA!");
    return false;
  }
  if (tryConnect) {
    return connect();
  }
  return true;
}