Solved: Esp core 2.4.0 not reconnecting by itself automatically to WiFi

[jplavoiemtl]

Basic Infos

Hardware

WiFimanager Branch/Release: Development

Hardware: ESP-12e

Core Version:

Description

Strange, the esp does not reconnect automatically to WiFi. When my esp is running it connect to WiFi no problem. I have a WiFi status of 3 which is connected. Serial.println(WiFi.status());

Then I deactivate WiFi in my router to simulate a WiFi problem. After I reactivate WiFi on the router, the esp does not reconnect to WiFi. I check status at 1 second intervals and I get 6 for a WL_DISCONNECTED.

I don't understand why the module does not reconnect automatically like is should. Any help please, thanks.

Settings in IDE

Module: NodeMcu,

Additional libraries:

Sketch

#include <Arduino.h>

void setup() {

}

void loop() {

}

Debug Messages

messages here

[tablatronix]

try

WiFi.setAutoReconnect(true);

[jplavoiemtl]

Thanks, I just tried and added in my setup loop:

WiFi.setAutoReconnect(true);

Still no re-connection to WiFi and same WL_DISCONNECTED 6 value looping around in my serial monitor window... Doesn't WiFiManager reconnects to WiFi automatically? What can be done in case of WiFi interruptions?

[tablatronix]

But it connects on reboot?

[tablatronix]

Did you try development branch yet?

[jplavoiemtl]

Yes, it connects fine on reboot. Only not reconnecting after I cut WiFi on the router then re-enabling WiFi on the router.
I tried the development branch today and I also tried the Master branch that I downloaded today. Same results, no automatic WiFi re-connection... :-(

[tablatronix]

What version of esp core are you using might be a bug

[jplavoiemtl]

Good point. In my Arduinio IDE librairies I see ESP8266 Built-in version 1.0.0 installed. I suppose I should get the new one at https://github.com/esp8266/Arduino and install the latest right? I'll do that tonight and install the latest 2.2.0. I will test and report after. We may be on a good track here, thanks.

I thought Arduino IDE 1.8.5 was updating all that stuff on it's own. A bit surprised I don't seem to have the latest esp core. I'll test soon.

[tablatronix]

2.4.0 your not even running the latest sdk on that version.

[jplavoiemtl]

A new test running with latest 2.4.0 esp8266 core. Same results, no WiFi re-connection after interruption.

I'm confused with this problem. This is a very basic setup: WiFi manager connects initially after power-up. The unit runs fine. Then after a simple WiFi interruption there is no re-connection!? Something is wrong and I can't get to the bottom of this.

[tablatronix]

No idea that functionality is controlled by esp code, maybe remove wifimanager and just see what happens with a begin in setup then unplug oh and turn on esp debugging

[jplavoiemtl]

I found the problem, it is a bug in esp core 2.4.0! I did revert back to esp core 2.3.0 and the WiFi reconnects fine and WiFiManager works like a charm. I built this module last year with core 2.3.0 and the WiFi got screwed with the latest 2.4.0 core. So I guess you could close my issue here.

Do you recommend opening a bug report issue on the esp8266 core github or someone will eventually find and correct it? It's a really important issue basic WiFi re-connection and I wonder how come it didn't surface in the reports on the new 2.4.0 core.

[tablatronix]

Yes, see if one exists already though

[jplavoiemtl]

Thanks for your help in resolving the issue to this problem @tablatronix

[tablatronix]

be sure to link to any bugs you find so we know

[jplavoiemtl]

There is this issue #4397 I opened on the esp8266 core group.