2.4.0 will not automatically reconnect

[ghost]

The following sketch would automatically reconnect using 2.3.0 but in 2.4.0 it never does. To test:

1. edit ssid and pw to your AP creds
2. turn on your Access Point radio, start sketch, it will soon report WL_CONNECTED
3. turn off the AP radio and it will soon report WL_DISCONNECTED
4. turn on AP radio. Version 2.3.0 will soon report WL_CONNECTED but 2.4.0 stays WL_DISCONNECTED forever
5. Note that in 2.4.0 even though the status stays WL_DISCONNECTED after the AP restart pinging the ESP IP does succeed, so it seems the ESP really does automatically reconnect but does not report this as status.

Thank you.

`
#include <stdlib.h>
#include <string.h>
#include <math.h>

#include <SPI.h>
#include <ESP8266WiFi.h>
#include <WiFiServer.h>
#include <WiFiClient.h>
#include <WiFiUdp.h>

char ssid[] = "xxx";
char pw[] = "yyy";

void setup()
{
Serial.begin(115200);

WiFi.enableSTA(true);

WiFi.setAutoConnect (true);
WiFi.setAutoReconnect (true);

WiFi.begin (ssid, pw);

Serial.println("start");

}

void loop()
{
prWiFiStatus(WiFi.status());

if (WiFi.isConnected())
    Serial.println (WiFi.localIP());

delay(2000);

}

void prWiFiStatus (int s)
{
#define VALCASE(x) case x: Serial.println(#x); break;

switch (s) {
VALCASE(WL_NO_SHIELD);
VALCASE(WL_IDLE_STATUS);
VALCASE(WL_NO_SSID_AVAIL);
VALCASE(WL_SCAN_COMPLETED);
VALCASE(WL_CONNECTED);
VALCASE(WL_CONNECT_FAILED);
VALCASE(WL_CONNECTION_LOST);
VALCASE(WL_DISCONNECTED);
default: Serial.println(s); break;
}

}
`

[tonton81]

i noticed it doesnt reconnect as well, have to call wifi begin again or reboot ESP.. didnt have this issue before 2.4

[d-a-v]

Would you agree this is duplicate of #4101 ?
If so, try latest git master version of core.

[ghost]

Thanks for really fast response. Yes, I agree this appears to be the same issue. Unfortunately I do not understand how to use the git versions, I can only get the stable versions to work via the Arduino IDE on my macOS system. I found the directions at https://github.com/esp8266/Arduino#using-git-version but it is unclear what is meant by "Go to Arduino directory". I tried following the remaining steps using these *hardware* directories: - /Applications/Arduino.app/Contents/Java/hardware - ~/Library//Arduino15/packages/esp8266/hardware but if I use either of these the IDE no longer lists any esp8266 boards after restarting. Sorry.

…

On Sun, Jan 14, 2018 at 3:52 PM, david gauchard ***@***.***> wrote: Would you agree this is duplicate of #4101 <#4101> ? If so, try latest git master version of core. — You are receiving this because you authored the thread. Reply to this email directly, view it on GitHub <#4161 (comment)>, or mute the thread <https://github.com/notifications/unsubscribe-auth/ALf8ZNIYTgEQmL1zCMI_bH_B9bhy0wztks5tKoVAgaJpZM4RdU2o> .

[d-a-v]

You can also try and use lwip v1.4 in Tools>Menu instead. Sorry I forgot to mention that as in #4166.
This will be fixed in the next release.

[ghost]

Solved. See 4166.

Many thanks.

[ghost]

boolean WiFiReturns() {
if (WiFi.localIP() == IPAddress(0, 0, 0, 0)) return 0;
  switch (WiFi.status()) {
    case WL_NO_SHIELD: return 0;
    case WL_IDLE_STATUS: return 0;
    case WL_NO_SSID_AVAIL: return 0;
    case WL_SCAN_COMPLETED: return 1;
    case WL_CONNECTED: return 1;
    case WL_CONNECT_FAILED: return 0;
    case WL_CONNECTION_LOST: return 0;
    case WL_DISCONNECTED: return 0;
    default: return 0;
  }
}

https://www.arduino.cc/en/Reference/WiFiStatus
WL_CONNECTED: assigned when connected to a WiFi network;
WL_NO_SHIELD: assigned when no WiFi shield is present;
WL_IDLE_STATUS: it is a temporary status assigned when WiFi.begin() is called and remains active until the number of attempts expires (resulting in WL_CONNECT_FAILED) or a connection is established (resulting in WL_CONNECTED);
WL_NO_SSID_AVAIL: assigned when no SSID are available;
WL_SCAN_COMPLETED: assigned when the scan networks is completed;
WL_CONNECT_FAILED: assigned when the connection fails for all the attempts;
WL_CONNECTION_LOST: assigned when the connection is lost;
WL_DISCONNECTED: assigned when disconnected from a network;

void loop() {
  if (!WiFiReturns()) { 
    WiFi.reconnect(); //Connection OFF - conexión OFF
  } else { 
    //conexión ON - Connection ON
  }
}

Saludos