WIFI.isconnected stil false after router reboot but ping requests reponse etc works

[d00lar]

Hardware

Hardware: sonoff basic and, nodemcu
Core Version: 2.4

Description

hi
i found out then after reboot my router esp reconnects to network response to pings
even handle webserwer etc

but i disable my home wifi during nights and have some function to hanndle night and other for day

if(WiFi.isConnected())
{
	.......
}

and at morning after my home wifi is enabled again
isconnected still return false..
checked also

if (WiFi.status() == WL_CONNECTED)

it also still return false

is there any other way to handle it propertly ?

on 2.3 (WiFi.status() == WL_CONNECTED) was working fine....

Thank you and best regards

[bugadani]

I am also looking for a proper solution here. If I forcefully disconnect my device from my router, it reconnects but the status is continuously reported as WL_DISCONNECTED.

As a workaround you can call WiFi.disconnect(true); to disable wifi and then reconnect.

[RAlexeev]

I have the same problem. I expected, that function WiFi.isConnected() should return true and WiFi.status() should return WL_CONNECTED code after automatic reconnection to Wi-Fi AP, however for some reason these functions return false and WL_DISCONNECTED respectively. But in fact, ESP has connected to Wi-Fi AP successfully.

I compile my sketch by Arduino IDE v. 1.8.5:

#include <ESP8266WiFi.h>
#include <ArduinoJson.h>


const char* ssid = "MYWIFISSID";
const char* password = "MYWIFIPSK";


void setup()
{
  Serial.setDebugOutput(true);
  Serial.begin(115200);
  delay(1000);

  WiFi.mode(WIFI_AP_STA);
  WiFi.softAP("my_esp");
  delay(1000);
  
  WiFi.begin(ssid, password);
  while (WiFi.status() != WL_CONNECTED) {
    delay(500);
    Serial.print(".");
  }
}


void loop()
{
  delay(5000);

  DynamicJsonDocument doc;
  JsonObject& obj = doc.to<JsonObject>();

  obj["chip_id"] = String(ESP.getChipId(), HEX);

  JsonObject& wifi = obj.createNestedObject("wifi");
  switch (WiFi.getMode()) {
    case WIFI_OFF:
      wifi["mode"] = "WIFI_OFF";
      break;
    case WIFI_STA:
      wifi["mode"] = "WIFI_STA";
      break;
    case WIFI_AP:
      wifi["mode"] = "SWIFI_AP";
      break;
    case WIFI_AP_STA:
      wifi["mode"] = "WIFI_AP_STA";
      break;
    default:
      wifi["mode"] = "UNKNOWN";
  }
  
  JsonObject& ap = wifi.createNestedObject("ap");
  ap["ssid"] = WiFi.softAPSSID();
  ap["psk"] = WiFi.softAPPSK();
  ap["ip"] = WiFi.softAPIP().toString();
  ap["mac"] = WiFi.softAPmacAddress();
  ap["station_num"] = (uint8_t) WiFi.softAPgetStationNum();
  
  JsonObject& station = wifi.createNestedObject("station");
  station["ssid"] = WiFi.SSID();
  station["psk"] = WiFi.psk();
  station["ip"] = WiFi.localIP().toString();
  station["hostname"] = WiFi.hostname();
  station["mac"] = WiFi.macAddress();
  station["subnet"] = WiFi.subnetMask().toString();
  station["gateway"] = WiFi.gatewayIP().toString();
  
  JsonObject& dns = station.createNestedObject("dns");
  dns["0"] = WiFi.dnsIP(0).toString();
  dns["1"] = WiFi.dnsIP(1).toString();

  JsonObject& states = obj.createNestedObject("state");
  states["AutoConnect"] = WiFi.getAutoConnect();
  states["AutoReconnect"] = WiFi.getAutoReconnect();
  states["Persistent"] = WiFi.getPersistent();
  states["isConnected"] = WiFi.isConnected();

  switch (WiFi.status()) {
    case WL_CONNECTED:
      states["status"] = "WL_CONNECTED";
      break;
    case WL_NO_SHIELD:
      states["status"] = "WL_NO_SHIELD";
      break;
    case WL_IDLE_STATUS:
      states["status"] = "WL_IDLE_STATUS";
      break;
    case WL_NO_SSID_AVAIL:
      states["status"] = "WL_NO_SSID_AVAIL";
      break;
    case WL_SCAN_COMPLETED:
      states["status"] = "WL_SCAN_COMPLETED";
      break;
    case WL_CONNECT_FAILED:
      states["status"] = "WL_CONNECT_FAILED";
      break;
    case WL_CONNECTION_LOST:
      states["status"] = "WL_CONNECTION_LOST";
      break;
    case WL_DISCONNECTED:
      states["status"] = "WL_DISCONNECTED";
      break;
    default:
      states["status"] = "UNKNOWN";
  }

  Serial.println("========================================");
  WiFi.printDiag(Serial);
  serializeJsonPretty(obj, Serial);
  Serial.println();
  Serial.println("========================================");
}

Serial monitor output:

SDK:2.2.1(cfd48f3)/Core:2.4.1-90-g1a9403df/lwIP:2.0.3(STABLE-2_0_3_RELEASE/glue:arduino-2.4.1-10-g0c0d8c2)/BearSSL:94e9704
wifi evt: 2
[AP] softap config unchanged
scandone
.....scandone
state: 0 -> 2 (b0)
state: 2 -> 3 (0)
state: 3 -> 5 (10)
add 0
aid 1
cnt 
.
connected with MYWIFISSID, channel 6
dhcp client start...
wifi evt: 0
ip:192.168.1.37,mask:255.255.255.0,gw:192.168.1.1
wifi evt: 3
.wifi evt: 7
wifi evt: 7
wifi evt: 7
wifi evt: 7
wifi evt: 7
wifi evt: 7
========================================
Mode: STA+AP
PHY mode: N
Channel: 6
AP id: 0
Status: 5
Auto connect: 1
SSID (15): MYWIFISSID
Passphrase (8): MYWIFIPSK
BSSID set: 0
{
  "chip_id": "180b0c",
  "wifi": {
    "mode": "WIFI_AP_STA",
    "ap": {
      "ssid": "my_esp",
      "psk": "",
      "ip": "192.168.4.1",
      "mac": "DE:4F:22:18:0B:0C",
      "station_num": 0
    },
    "station": {
      "ssid": "MYWIFISSID",
      "psk": "MYWIFIPSK",
      "ip": "192.168.1.37",
      "hostname": "ESP_180B0C",
      "mac": "DC:4F:22:18:0B:0C",
      "subnet": "255.255.255.0",
      "gateway": "192.168.1.1",
      "dns": {
        "0": "192.168.1.1",
        "1": "0.0.0.0"
      }
    }
  },
  "state": {
    "AutoConnect": true,
    "AutoReconnect": true,
    "Persistent": true,
    "isConnected": true,
    "status": "WL_CONNECTED"
  }
}
========================================
========================================
Mode: STA+AP
PHY mode: N
Channel: 6
AP id: 0
Status: 5
Auto connect: 1
SSID (15): MYWIFISSID
Passphrase (8): MYWIFIPSK
BSSID set: 0
{
  "chip_id": "180b0c",
  "wifi": {
    "mode": "WIFI_AP_STA",
    "ap": {
      "ssid": "my_esp",
      "psk": "",
      "ip": "192.168.4.1",
      "mac": "DE:4F:22:18:0B:0C",
      "station_num": 0
    },
    "station": {
      "ssid": "MYWIFISSID",
      "psk": "MYWIFIPSK",
      "ip": "192.168.1.37",
      "hostname": "ESP_180B0C",
      "mac": "DC:4F:22:18:0B:0C",
      "subnet": "255.255.255.0",
      "gateway": "192.168.1.1",
      "dns": {
        "0": "192.168.1.1",
        "1": "0.0.0.0"
      }
    }
  },
  "state": {
    "AutoConnect": true,
    "AutoReconnect": true,
    "Persistent": true,
    "isConnected": true,
    "status": "WL_CONNECTED"
  }
}
========================================
wifi evt: 7
wifi evt: 7
bcn_timout,ap_probe_send_start
========================================
Mode: STA+AP
PHY mode: N
Channel: 6
AP id: 0
Status: 5
Auto connect: 1
SSID (15): MYWIFISSID
Passphrase (8): MYWIFIPSK
BSSID set: 0
{
  "chip_id": "180b0c",
  "wifi": {
    "mode": "WIFI_AP_STA",
    "ap": {
      "ssid": "my_esp",
      "psk": "",
      "ip": "192.168.4.1",
      "mac": "DE:4F:22:18:0B:0C",
      "station_num": 0
    },
    "station": {
      "ssid": "MYWIFISSID",
      "psk": "MYWIFIPSK",
      "ip": "192.168.1.37",
      "hostname": "ESP_180B0C",
      "mac": "DC:4F:22:18:0B:0C",
      "subnet": "255.255.255.0",
      "gateway": "192.168.1.1",
      "dns": {
        "0": "192.168.1.1",
        "1": "0.0.0.0"
      }
    }
  },
  "state": {
    "AutoConnect": true,
    "AutoReconnect": true,
    "Persistent": true,
    "isConnected": true,
    "status": "WL_CONNECTED"
  }
}
========================================
ap_probe_send over, rest wifi status to disassoc
state: 5 -> 0 (1)
rm 0
wifi evt: 1
STA disconnect: 200
scandone
no MYWIFISSID found, reconnect after 1s
wifi evt: 1
STA disconnect: 201
reconnect
========================================
Mode: STA+AP
PHY mode: N
Channel: 3
AP id: 0
Status: 1
Auto connect: 1
SSID (15): MYWIFISSID
Passphrase (8): MYWIFIPSK
BSSID set: 0
{
  "chip_id": "180b0c",
  "wifi": {
    "mode": "WIFI_AP_STA",
    "ap": {
      "ssid": "my_esp",
      "psk": "",
      "ip": "192.168.4.1",
      "mac": "DE:4F:22:18:0B:0C",
      "station_num": 0
    },
    "station": {
      "ssid": "MYWIFISSID",
      "psk": "MYWIFIPSK",
      "ip": "0.0.0.0",
      "hostname": "ESP_180B0C",
      "mac": "DC:4F:22:18:0B:0C",
      "subnet": "0.0.0.0",
      "gateway": "0.0.0.0",
      "dns": {
        "0": "192.168.1.1",
        "1": "0.0.0.0"
      }
    }
  },
  "state": {
    "AutoConnect": true,
    "AutoReconnect": true,
    "Persistent": true,
    "isConnected": false,
    "status": "WL_DISCONNECTED"
  }
}
========================================
scandone
no MYWIFISSID found, reconnect after 1s
wifi evt: 1
STA disconnect: 201
reconnect
wifi evt: 7
wifi evt: 7
========================================
Mode: STA+AP
PHY mode: N
Channel: 14
AP id: 0
Status: 1
Auto connect: 1
SSID (15): MYWIFISSID
Passphrase (8): MYWIFIPSK
BSSID set: 0
{
  "chip_id": "180b0c",
  "wifi": {
    "mode": "WIFI_AP_STA",
    "ap": {
      "ssid": "my_esp",
      "psk": "",
      "ip": "192.168.4.1",
      "mac": "DE:4F:22:18:0B:0C",
      "station_num": 0
    },
    "station": {
      "ssid": "MYWIFISSID",
      "psk": "MYWIFIPSK",
      "ip": "0.0.0.0",
      "hostname": "ESP_180B0C",
      "mac": "DC:4F:22:18:0B:0C",
      "subnet": "0.0.0.0",
      "gateway": "0.0.0.0",
      "dns": {
        "0": "192.168.1.1",
        "1": "0.0.0.0"
      }
    }
  },
  "state": {
    "AutoConnect": true,
    "AutoReconnect": true,
    "Persistent": true,
    "isConnected": false,
    "status": "WL_DISCONNECTED"
  }
}
========================================
scandone
no MYWIFISSID found, reconnect after 1s
wifi evt: 1
STA disconnect: 201
reconnect
wifi evt: 7
scandone
no MYWIFISSID found, reconnect after 1s
wifi evt: 1
STA disconnect: 201
reconnect
wifi evt: 7
========================================
Mode: STA+AP
PHY mode: N
Channel: 6
AP id: 0
Status: 3
Auto connect: 1
SSID (15): MYWIFISSID
Passphrase (8): MYWIFIPSK
BSSID set: 0
{
  "chip_id": "180b0c",
  "wifi": {
    "mode": "WIFI_AP_STA",
    "ap": {
      "ssid": "my_esp",
      "psk": "",
      "ip": "192.168.4.1",
      "mac": "DE:4F:22:18:0B:0C",
      "station_num": 0
    },
    "station": {
      "ssid": "MYWIFISSID",
      "psk": "MYWIFIPSK",
      "ip": "0.0.0.0",
      "hostname": "ESP_180B0C",
      "mac": "DC:4F:22:18:0B:0C",
      "subnet": "0.0.0.0",
      "gateway": "0.0.0.0",
      "dns": {
        "0": "192.168.1.1",
        "1": "0.0.0.0"
      }
    }
  },
  "state": {
    "AutoConnect": true,
    "AutoReconnect": true,
    "Persistent": true,
    "isConnected": false,
    "status": "WL_NO_SSID_AVAIL"
  }
}
========================================
scandone
no MYWIFISSID found, reconnect after 1s
wifi evt: 1
STA disconnect: 201
reconnect
wifi evt: 7
wifi evt: 7
scandone
no MYWIFISSID found, reconnect after 1s
wifi evt: 1
STA disconnect: 201
reconnect
========================================
Mode: STA+AP
PHY mode: N
Channel: 6
AP id: 0
Status: 3
Auto connect: 1
SSID (15): MYWIFISSID
Passphrase (8): MYWIFIPSK
BSSID set: 0
{
  "chip_id": "180b0c",
  "wifi": {
    "mode": "WIFI_AP_STA",
    "ap": {
      "ssid": "my_esp",
      "psk": "",
      "ip": "192.168.4.1",
      "mac": "DE:4F:22:18:0B:0C",
      "station_num": 0
    },
    "station": {
      "ssid": "MYWIFISSID",
      "psk": "MYWIFIPSK",
      "ip": "0.0.0.0",
      "hostname": "ESP_180B0C",
      "mac": "DC:4F:22:18:0B:0C",
      "subnet": "0.0.0.0",
      "gateway": "0.0.0.0",
      "dns": {
        "0": "192.168.1.1",
        "1": "0.0.0.0"
      }
    }
  },
  "state": {
    "AutoConnect": true,
    "AutoReconnect": true,
    "Persistent": true,
    "isConnected": false,
    "status": "WL_NO_SSID_AVAIL"
  }
}
========================================
scandone
no MYWIFISSID found, reconnect after 1s
wifi evt: 1
STA disconnect: 201
reconnect
scandone
state: 0 -> 2 (b0)
========================================
Mode: STA+AP
PHY mode: N
Channel: 1
AP id: 0
Status: 1
Auto connect: 1
SSID (15): MYWIFISSID
Passphrase (8): MYWIFIPSK
BSSID set: 0
{
  "chip_id": "180b0c",
  "wifi": {
    "mode": "WIFI_AP_STA",
    "ap": {
      "ssid": "my_esp",
      "psk": "",
      "ip": "192.168.4.1",
      "mac": "DE:4F:22:18:0B:0C",
      "station_num": 0
    },
    "station": {
      "ssid": "MYWIFISSID",
      "psk": "MYWIFIPSK",
      "ip": "0.0.0.0",
      "hostname": "ESP_180B0C",
      "mac": "DC:4F:22:18:0B:0C",
      "subnet": "0.0.0.0",
      "gateway": "0.0.0.0",
      "dns": {
        "0": "192.168.1.1",
        "1": "0.0.0.0"
      }
    }
  },
  "state": {
    "AutoConnect": true,
    "AutoReconnect": true,
    "Persistent": true,
    "isConnected": false,
    "status": "WL_DISCONNECTED"
  }
}
========================================
state: 2 -> 0 (2)
reconnect
wifi evt: 1
STA disconnect: 2
wifi evt: 7
scandone
no MYWIFISSID found, reconnect after 1s
wifi evt: 1
STA disconnect: 201
reconnect
========================================
Mode: STA+AP
PHY mode: N
Channel: 8
AP id: 0
Status: 1
Auto connect: 1
SSID (15): MYWIFISSID
Passphrase (8): MYWIFIPSK
BSSID set: 0
{
  "chip_id": "180b0c",
  "wifi": {
    "mode": "WIFI_AP_STA",
    "ap": {
      "ssid": "my_esp",
      "psk": "",
      "ip": "192.168.4.1",
      "mac": "DE:4F:22:18:0B:0C",
      "station_num": 0
    },
    "station": {
      "ssid": "MYWIFISSID",
      "psk": "MYWIFIPSK",
      "ip": "0.0.0.0",
      "hostname": "ESP_180B0C",
      "mac": "DC:4F:22:18:0B:0C",
      "subnet": "0.0.0.0",
      "gateway": "0.0.0.0",
      "dns": {
        "0": "192.168.1.1",
        "1": "0.0.0.0"
      }
    }
  },
  "state": {
    "AutoConnect": true,
    "AutoReconnect": true,
    "Persistent": true,
    "isConnected": false,
    "status": "WL_DISCONNECTED"
  }
}
========================================
scandone
state: 0 -> 2 (b0)
state: 2 -> 3 (0)
state: 3 -> 5 (10)
add 0
aid 1
cnt 

connected with MYWIFISSID, channel 8
dhcp client start...
wifi evt: 0
========================================
Mode: STA+AP
PHY mode: N
Channel: 8
AP id: 0
Status: 1
Auto connect: 1
SSID (15): MYWIFISSID
Passphrase (8): MYWIFIPSK
BSSID set: 0
{
  "chip_id": "180b0c",
  "wifi": {
    "mode": "WIFI_AP_STA",
    "ap": {
      "ssid": "my_esp",
      "psk": "",
      "ip": "192.168.4.1",
      "mac": "DE:4F:22:18:0B:0C",
      "station_num": 0
    },
    "station": {
      "ssid": "MYWIFISSID",
      "psk": "MYWIFIPSK",
      "ip": "0.0.0.0",
      "hostname": "ESP_180B0C",
      "mac": "DC:4F:22:18:0B:0C",
      "subnet": "0.0.0.0",
      "gateway": "0.0.0.0",
      "dns": {
        "0": "192.168.1.1",
        "1": "0.0.0.0"
      }
    }
  },
  "state": {
    "AutoConnect": true,
    "AutoReconnect": true,
    "Persistent": true,
    "isConnected": false,
    "status": "WL_DISCONNECTED"
  }
}
========================================
========================================
Mode: STA+AP
PHY mode: N
Channel: 8
AP id: 0
Status: 1
Auto connect: 1
SSID (15): MYWIFISSID
Passphrase (8): MYWIFIPSK
BSSID set: 0
{
  "chip_id": "180b0c",
  "wifi": {
    "mode": "WIFI_AP_STA",
    "ap": {
      "ssid": "my_esp",
      "psk": "",
      "ip": "192.168.4.1",
      "mac": "DE:4F:22:18:0B:0C",
      "station_num": 0
    },
    "station": {
      "ssid": "MYWIFISSID",
      "psk": "MYWIFIPSK",
      "ip": "0.0.0.0",
      "hostname": "ESP_180B0C",
      "mac": "DC:4F:22:18:0B:0C",
      "subnet": "0.0.0.0",
      "gateway": "0.0.0.0",
      "dns": {
        "0": "192.168.1.1",
        "1": "0.0.0.0"
      }
    }
  },
  "state": {
    "AutoConnect": true,
    "AutoReconnect": true,
    "Persistent": true,
    "isConnected": false,
    "status": "WL_DISCONNECTED"
  }
}
========================================
========================================
Mode: STA+AP
PHY mode: N
Channel: 8
AP id: 0
Status: 1
Auto connect: 1
SSID (15): MYWIFISSID
Passphrase (8): MYWIFIPSK
BSSID set: 0
{
  "chip_id": "180b0c",
  "wifi": {
    "mode": "WIFI_AP_STA",
    "ap": {
      "ssid": "my_esp",
      "psk": "",
      "ip": "192.168.4.1",
      "mac": "DE:4F:22:18:0B:0C",
      "station_num": 0
    },
    "station": {
      "ssid": "MYWIFISSID",
      "psk": "MYWIFIPSK",
      "ip": "0.0.0.0",
      "hostname": "ESP_180B0C",
      "mac": "DC:4F:22:18:0B:0C",
      "subnet": "0.0.0.0",
      "gateway": "0.0.0.0",
      "dns": {
        "0": "192.168.1.1",
        "1": "0.0.0.0"
      }
    }
  },
  "state": {
    "AutoConnect": true,
    "AutoReconnect": true,
    "Persistent": true,
    "isConnected": false,
    "status": "WL_DISCONNECTED"
  }
}
========================================
========================================
Mode: STA+AP
PHY mode: N
Channel: 8
AP id: 0
Status: 1
Auto connect: 1
SSID (15): MYWIFISSID
Passphrase (8): MYWIFIPSK
BSSID set: 0
{
  "chip_id": "180b0c",
  "wifi": {
    "mode": "WIFI_AP_STA",
    "ap": {
      "ssid": "my_esp",
      "psk": "",
      "ip": "192.168.4.1",
      "mac": "DE:4F:22:18:0B:0C",
      "station_num": 0
    },
    "station": {
      "ssid": "MYWIFISSID",
      "psk": "MYWIFIPSK",
      "ip": "0.0.0.0",
      "hostname": "ESP_180B0C",
      "mac": "DC:4F:22:18:0B:0C",
      "subnet": "0.0.0.0",
      "gateway": "0.0.0.0",
      "dns": {
        "0": "192.168.1.1",
        "1": "0.0.0.0"
      }
    }
  },
  "state": {
    "AutoConnect": true,
    "AutoReconnect": true,
    "Persistent": true,
    "isConnected": false,
    "status": "WL_DISCONNECTED"
  }
}
========================================

[d-a-v]

@d00lar @bugadani @RAlexeev Please try latest master. Yesterday's fixes were about WiFi disconnection and reconnection.

[RAlexeev]

Library from master branch seems really works properly in this place! Thank you!

[RAlexeev]

@d-a-v I hurried with conclusions, when said that WiFi.status() works properly. Today I've faced this problem again. If I set AutoReconnect to false and when I turned off my Wi-Fi Access Point, WiFi.isConnected() return incorrect status WL_CONNECTED. If AutoReconnect is true (comment out this string WiFi.setAutoReconnect(false);), then WiFi.isConnected() will return correct status WL_DISCONNECTED after turning off Wi-Fi router. But WiFi.status() return different statuses with different Wi-Fi routers (see serial monitor outputs below).

I compile my sketch by Arduino IDE v. 1.8.5:

#include <ESP8266WiFi.h>
#include <ArduinoJson.h>


const char* ssid = "MYWIFISSID";
const char* password = "MYWIFIPSK";


void printDebug() {
  DynamicJsonDocument doc;
  JsonObject& obj = doc.to<JsonObject>();

  obj["chip_id"] = String(ESP.getChipId(), HEX);

  JsonObject& wifi = obj.createNestedObject("wifi");
  switch (WiFi.getSleepMode()) {
    case WIFI_NONE_SLEEP:
      wifi["SleepMode"] = "WIFI_NONE_SLEEP";
      break;
    case WIFI_LIGHT_SLEEP:
      wifi["SleepMode"] = "WIFI_LIGHT_SLEEP";
      break;
    case WIFI_MODEM_SLEEP:
      wifi["SleepMode"] = "WIFI_MODEM_SLEEP";
      break;
    default:
      wifi["SleepMode"] = "UNKNOWN";
  }
  
  switch (WiFi.getMode()) {
    case WIFI_OFF:
      wifi["mode"] = "WIFI_OFF";
      break;
    case WIFI_STA:
      wifi["mode"] = "WIFI_STA";
      break;
    case WIFI_AP:
      wifi["mode"] = "WIFI_AP";
      break;
    case WIFI_AP_STA:
      wifi["mode"] = "WIFI_AP_STA";
      break;
    default:
      wifi["mode"] = "UNKNOWN";
  }
  
  JsonObject& ap = wifi.createNestedObject("ap");
  ap["ssid"] = WiFi.softAPSSID();
  ap["psk"] = WiFi.softAPPSK();
  ap["ip"] = WiFi.softAPIP().toString();
  ap["mac"] = WiFi.softAPmacAddress();
  ap["station_num"] = (uint8_t) WiFi.softAPgetStationNum();
  
  JsonObject& station = wifi.createNestedObject("station");
  station["ssid"] = WiFi.SSID();
  station["psk"] = WiFi.psk();
  station["ip"] = WiFi.localIP().toString();
  station["hostname"] = WiFi.hostname();
  station["mac"] = WiFi.macAddress();
  station["subnet"] = WiFi.subnetMask().toString();
  station["gateway"] = WiFi.gatewayIP().toString();
  
  JsonObject& dns = station.createNestedObject("dns");
  dns["0"] = WiFi.dnsIP(0).toString();
  dns["1"] = WiFi.dnsIP(1).toString();

  JsonObject& states = obj.createNestedObject("state");
  states["AutoConnect"] = WiFi.getAutoConnect();
  states["AutoReconnect"] = WiFi.getAutoReconnect();
  states["Persistent"] = WiFi.getPersistent();
  states["isConnected"] = WiFi.isConnected();

  switch (WiFi.status()) {
    case WL_CONNECTED:
      states["status"] = "WL_CONNECTED";
      break;
    case WL_NO_SHIELD:
      states["status"] = "WL_NO_SHIELD";
      break;
    case WL_IDLE_STATUS:
      states["status"] = "WL_IDLE_STATUS";
      break;
    case WL_NO_SSID_AVAIL:
      states["status"] = "WL_NO_SSID_AVAIL";
      break;
    case WL_SCAN_COMPLETED:
      states["status"] = "WL_SCAN_COMPLETED";
      break;
    case WL_CONNECT_FAILED:
      states["status"] = "WL_CONNECT_FAILED";
      break;
    case WL_CONNECTION_LOST:
      states["status"] = "WL_CONNECTION_LOST";
      break;
    case WL_DISCONNECTED:
      states["status"] = "WL_DISCONNECTED";
      break;
    default:
      states["status"] = "UNKNOWN";
  }

  WiFi.printDiag(Serial);
  serializeJsonPretty(obj, Serial);
}


void setup()
{
  Serial.setDebugOutput(true);
  Serial.begin(115200);
  delay(1000);

  WiFi.setAutoReconnect(false);

  WiFi.mode(WIFI_STA);

  WiFi.begin(ssid, password);
  while (WiFi.status() != WL_CONNECTED) {
    delay(500);
    Serial.print(".");
  }
}


void loop()
{
  delay(10000);

  Serial.println("========================================");
  WiFi.printDiag(Serial);
  printDebug();
  Serial.println();
  Serial.println("========================================");
}

I've tried run this sketch with Wi-Fi Access Point, created by Android smartphone.

Serial monitor output, when AutoReconnect is false:

SDK:2.2.1(cfd48f3)/Core:2.4.1-104-g1eb0645d/lwIP:2.0.3(STABLE-2_0_3_RELEASE/glue:arduino-2.4.1-13-g163bb82)/BearSSL:94e9704
bcn 0
del if1
usl
mode : sta(dc:4f:22:18:14:58)
add if0
wifi evt: 8
.wifi evt: 2
....scandone
state: 0 -> 2 (b0)
.state: 2 -> 3 (0)
state: 3 -> 5 (10)
add 0
aid 1
cnt 

connected with MYWIFISSID, channel 6
dhcp client start...
wifi evt: 0
ip:192.168.43.228,mask:255.255.255.0,gw:192.168.43.1
wifi evt: 3
.pm open,type:2 0
========================================
Mode: STA
PHY mode: N
Channel: 6
AP id: 0
Status: 5
Auto connect: 1
SSID (10): MYWIFISSID
Passphrase (9): MYWIFIPSK
BSSID set: 0
{
  "chip_id": "181458",
  "wifi": {
    "SleepMode": "WIFI_MODEM_SLEEP",
    "mode": "WIFI_STA",
    "ap": {
      "ssid": "ESP_181458",
      "psk": "",
      "ip": "0.0.0.0",
      "mac": "DE:4F:22:18:14:58",
      "station_num": 0
    },
    "station": {
      "ssid": "MYWIFISSID",
      "psk": "MYWIFIPSK",
      "ip": "192.168.43.228",
      "hostname": "ESP_181458",
      "mac": "DC:4F:22:18:14:58",
      "subnet": "255.255.255.0",
      "gateway": "192.168.43.1",
      "dns": {
        "0": "192.168.43.1",
        "1": "0.0.0.0"
      }
    }
  },
  "state": {
    "AutoConnect": true,
    "AutoReconnect": false,
    "Persistent": true,
    "isConnected": true,
    "status": "WL_CONNECTED"
  }
}
========================================
state: 5 -> 2 (13a0)
rm 0
pm close 7
wifi evt: 1
STA disconnect: 19
========================================
Mode: STA
PHY mode: N
Channel: 6
AP id: 0
Status: 5
Auto connect: 1
SSID (10): MYWIFISSID
Passphrase (9): MYWIFIPSK
BSSID set: 0
{
  "chip_id": "181458",
  "wifi": {
    "SleepMode": "WIFI_MODEM_SLEEP",
    "mode": "WIFI_STA",
    "ap": {
      "ssid": "ESP_181458",
      "psk": "",
      "ip": "0.0.0.0",
      "mac": "DE:4F:22:18:14:58",
      "station_num": 0
    },
    "station": {
      "ssid": "MYWIFISSID",
      "psk": "MYWIFIPSK",
      "ip": "0.0.0.0",
      "hostname": "ESP_181458",
      "mac": "DC:4F:22:18:14:58",
      "subnet": "0.0.0.0",
      "gateway": "0.0.0.0",
      "dns": {
        "0": "192.168.43.1",
        "1": "0.0.0.0"
      }
    }
  },
  "state": {
    "AutoConnect": true,
    "AutoReconnect": false,
    "Persistent": true,
    "isConnected": true,
    "status": "WL_CONNECTED"
  }
}
========================================

Serial monitor output, when AutoReconnect is true:

SDK:2.2.1(cfd48f3)/Core:2.4.1-104-g1eb0645d/lwIP:2.0.3(STABLE-2_0_3_RELEASE/glue:arduino-2.4.1-13-g163bb82)/BearSSL:94e9704
wifi evt: 2
scandone
.....scandone
state: 0 -> 2 (b0)
.state: 2 -> 3 (0)
state: 3 -> 5 (10)
add 0
aid 1
cnt 

connected with MYWIFISSID, channel 6
dhcp client start...
wifi evt: 0
ip:192.168.43.228,mask:255.255.255.0,gw:192.168.43.1
wifi evt: 3
.pm open,type:2 0
========================================
Mode: STA
PHY mode: N
Channel: 6
AP id: 0
Status: 5
Auto connect: 1
SSID (10): MYWIFISSID
Passphrase (9): MYWIFIPSK
BSSID set: 0
{
  "chip_id": "181458",
  "wifi": {
    "SleepMode": "WIFI_MODEM_SLEEP",
    "mode": "WIFI_STA",
    "ap": {
      "ssid": "ESP_181458",
      "psk": "",
      "ip": "0.0.0.0",
      "mac": "DE:4F:22:18:14:58",
      "station_num": 0
    },
    "station": {
      "ssid": "MYWIFISSID",
      "psk": "MYWIFIPSK",
      "ip": "192.168.43.228",
      "hostname": "ESP_181458",
      "mac": "DC:4F:22:18:14:58",
      "subnet": "255.255.255.0",
      "gateway": "192.168.43.1",
      "dns": {
        "0": "192.168.43.1",
        "1": "0.0.0.0"
      }
    }
  },
  "state": {
    "AutoConnect": true,
    "AutoReconnect": true,
    "Persistent": true,
    "isConnected": true,
    "status": "WL_CONNECTED"
  }
}
========================================
state: 5 -> 2 (13a0)
rm 0
pm close 7
wifi evt: 1
STA disconnect: 19
reconnect
state: 2 -> 0 (0)
scandone
no MYWIFISSID found, reconnect after 1s
wifi evt: 1
STA disconnect: 201
reconnect
scandone
no MYWIFISSID found, reconnect after 1s
wifi evt: 1
STA disconnect: 201
reconnect
scandone
no MYWIFISSID found, reconnect after 1s
wifi evt: 1
STA disconnect: 201
reconnect
========================================
Mode: STA
PHY mode: N
Channel: 9
AP id: 0
Status: 3
Auto connect: 1
SSID (10): MYWIFISSID
Passphrase (9): MYWIFIPSK
BSSID set: 0
{
  "chip_id": "181458",
  "wifi": {
    "SleepMode": "WIFI_MODEM_SLEEP",
    "mode": "WIFI_STA",
    "ap": {
      "ssid": "ESP_181458",
      "psk": "",
      "ip": "0.0.0.0",
      "mac": "DE:4F:22:18:14:58",
      "station_num": 0
    },
    "station": {
      "ssid": "MYWIFISSID",
      "psk": "MYWIFIPSK",
      "ip": "0.0.0.0",
      "hostname": "ESP_181458",
      "mac": "DC:4F:22:18:14:58",
      "subnet": "0.0.0.0",
      "gateway": "0.0.0.0",
      "dns": {
        "0": "192.168.43.1",
        "1": "0.0.0.0"
      }
    }
  },
  "state": {
    "AutoConnect": true,
    "AutoReconnect": true,
    "Persistent": true,
    "isConnected": false,
    "status": "WL_NO_SSID_AVAIL"
  }
}
========================================

I've tried run this sketch with other Wi-Fi router (D-Link DIR-860L).

Serial monitor output, when AutoReconnect is false:

SDK:2.2.1(cfd48f3)/Core:2.4.1-104-g1eb0645d/lwIP:2.0.3(STABLE-2_0_3_RELEASE/glue:arduino-2.4.1-13-g163bb82)/BearSSL:94e9704
wifi evt: 2
scandone
.....scandone
state: 0 -> 2 (b0)
state: 2 -> 3 (0)
state: 3 -> 5 (10)
add 0
aid 2
cnt 

connected with MYWIFISSID_OTHER, channel 1
dhcp client start...
wifi evt: 0
.ip:192.168.0.101,mask:255.255.255.0,gw:192.168.0.1
wifi evt: 3
.pm open,type:2 0
========================================
Mode: STA
PHY mode: N
Channel: 1
AP id: 0
Status: 5
Auto connect: 1
SSID (6): MYWIFISSID_OTHER
Passphrase (19): MYWIFIPSK_OTHER
BSSID set: 0
{
  "chip_id": "181458",
  "wifi": {
    "SleepMode": "WIFI_MODEM_SLEEP",
    "mode": "WIFI_STA",
    "ap": {
      "ssid": "ESP_181458",
      "psk": "",
      "ip": "0.0.0.0",
      "mac": "DE:4F:22:18:14:58",
      "station_num": 0
    },
    "station": {
      "ssid": "MYWIFISSID_OTHER",
      "psk": "MYWIFIPSK_OTHER",
      "ip": "192.168.0.101",
      "hostname": "ESP_181458",
      "mac": "DC:4F:22:18:14:58",
      "subnet": "255.255.255.0",
      "gateway": "192.168.0.1",
      "dns": {
        "0": "192.168.0.1",
        "1": "0.0.0.0"
      }
    }
  },
  "state": {
    "AutoConnect": true,
    "AutoReconnect": false,
    "Persistent": true,
    "isConnected": true,
    "status": "WL_CONNECTED"
  }
}
========================================
bcn_timout,ap_probe_send_start
========================================
Mode: STA
PHY mode: N
Channel: 1
AP id: 0
Status: 5
Auto connect: 1
SSID (6): MYWIFISSID_OTHER
Passphrase (19): MYWIFIPSK_OTHER
BSSID set: 0
{
  "chip_id": "181458",
  "wifi": {
    "SleepMode": "WIFI_MODEM_SLEEP",
    "mode": "WIFI_STA",
    "ap": {
      "ssid": "ESP_181458",
      "psk": "",
      "ip": "0.0.0.0",
      "mac": "DE:4F:22:18:14:58",
      "station_num": 0
    },
    "station": {
      "ssid": "MYWIFISSID_OTHER",
      "psk": "MYWIFIPSK_OTHER",
      "ip": "192.168.0.101",
      "hostname": "ESP_181458",
      "mac": "DC:4F:22:18:14:58",
      "subnet": "255.255.255.0",
      "gateway": "192.168.0.1",
      "dns": {
        "0": "192.168.0.1",
        "1": "0.0.0.0"
      }
    }
  },
  "state": {
    "AutoConnect": true,
    "AutoReconnect": false,
    "Persistent": true,
    "isConnected": true,
    "status": "WL_CONNECTED"
  }
}
========================================
ap_probe_send over, rest wifi status to disassoc
state: 5 -> 0 (1)
rm 0
pm close 7
wifi evt: 1
STA disconnect: 200
========================================
Mode: STA
PHY mode: N
Channel: 1
AP id: 0
Status: 0
Auto connect: 1
SSID (6): MYWIFISSID_OTHER
Passphrase (19): MYWIFIPSK_OTHER
BSSID set: 0
{
  "chip_id": "181458",
  "wifi": {
    "SleepMode": "WIFI_MODEM_SLEEP",
    "mode": "WIFI_STA",
    "ap": {
      "ssid": "ESP_181458",
      "psk": "",
      "ip": "0.0.0.0",
      "mac": "DE:4F:22:18:14:58",
      "station_num": 0
    },
    "station": {
      "ssid": "MYWIFISSID_OTHER",
      "psk": "MYWIFIPSK_OTHER",
      "ip": "0.0.0.0",
      "hostname": "ESP_181458",
      "mac": "DC:4F:22:18:14:58",
      "subnet": "0.0.0.0",
      "gateway": "0.0.0.0",
      "dns": {
        "0": "192.168.0.1",
        "1": "0.0.0.0"
      }
    }
  },
  "state": {
    "AutoConnect": true,
    "AutoReconnect": false,
    "Persistent": true,
    "isConnected": false,
    "status": "WL_IDLE_STATUS"
  }
}
========================================
========================================
Mode: STA
PHY mode: N
Channel: 1
AP id: 0
Status: 0
Auto connect: 1
SSID (6): MYWIFISSID_OTHER
Passphrase (19): MYWIFIPSK_OTHER
BSSID set: 0
{
  "chip_id": "181458",
  "wifi": {
    "SleepMode": "WIFI_MODEM_SLEEP",
    "mode": "WIFI_STA",
    "ap": {
      "ssid": "ESP_181458",
      "psk": "",
      "ip": "0.0.0.0",
      "mac": "DE:4F:22:18:14:58",
      "station_num": 0
    },
    "station": {
      "ssid": "MYWIFISSID_OTHER",
      "psk": "MYWIFIPSK_OTHER",
      "ip": "0.0.0.0",
      "hostname": "ESP_181458",
      "mac": "DC:4F:22:18:14:58",
      "subnet": "0.0.0.0",
      "gateway": "0.0.0.0",
      "dns": {
        "0": "192.168.0.1",
        "1": "0.0.0.0"
      }
    }
  },
  "state": {
    "AutoConnect": true,
    "AutoReconnect": false,
    "Persistent": true,
    "isConnected": false,
    "status": "WL_IDLE_STATUS"
  }
}
========================================

Serial monitor output, when AutoReconnect is true:

SDK:2.2.1(cfd48f3)/Core:2.4.1-104-g1eb0645d/lwIP:2.0.3(STABLE-2_0_3_RELEASE/glue:arduino-2.4.1-13-g163bb82)/BearSSL:94e9704
wifi evt: 2
scandone
.....scandone
state: 0 -> 2 (b0)
.state: 2 -> 3 (0)
state: 3 -> 5 (10)
add 0
aid 2
cnt 

connected with MYWIFISSID_OTHER, channel 1
dhcp client start...
wifi evt: 0
ip:192.168.0.101,mask:255.255.255.0,gw:192.168.0.1
wifi evt: 3
.pm open,type:2 0
========================================
Mode: STA
PHY mode: N
Channel: 1
AP id: 0
Status: 5
Auto connect: 1
SSID (6): MYWIFISSID_OTHER
Passphrase (19): MYWIFIPSK_OTHER
BSSID set: 0
{
  "chip_id": "181458",
  "wifi": {
    "SleepMode": "WIFI_MODEM_SLEEP",
    "mode": "WIFI_STA",
    "ap": {
      "ssid": "ESP_181458",
      "psk": "",
      "ip": "0.0.0.0",
      "mac": "DE:4F:22:18:14:58",
      "station_num": 0
    },
    "station": {
      "ssid": "MYWIFISSID_OTHER",
      "psk": "MYWIFIPSK_OTHER",
      "ip": "192.168.0.101",
      "hostname": "ESP_181458",
      "mac": "DC:4F:22:18:14:58",
      "subnet": "255.255.255.0",
      "gateway": "192.168.0.1",
      "dns": {
        "0": "192.168.0.1",
        "1": "0.0.0.0"
      }
    }
  },
  "state": {
    "AutoConnect": true,
    "AutoReconnect": true,
    "Persistent": true,
    "isConnected": true,
    "status": "WL_CONNECTED"
  }
}
========================================
bcn_timout,ap_probe_send_start
========================================
Mode: STA
PHY mode: N
Channel: 1
AP id: 0
Status: 5
Auto connect: 1
SSID (6): MYWIFISSID_OTHER
Passphrase (19): MYWIFIPSK_OTHER
BSSID set: 0
{
  "chip_id": "181458",
  "wifi": {
    "SleepMode": "WIFI_MODEM_SLEEP",
    "mode": "WIFI_STA",
    "ap": {
      "ssid": "ESP_181458",
      "psk": "",
      "ip": "0.0.0.0",
      "mac": "DE:4F:22:18:14:58",
      "station_num": 0
    },
    "station": {
      "ssid": "MYWIFISSID_OTHER",
      "psk": "MYWIFIPSK_OTHER",
      "ip": "192.168.0.101",
      "hostname": "ESP_181458",
      "mac": "DC:4F:22:18:14:58",
      "subnet": "255.255.255.0",
      "gateway": "192.168.0.1",
      "dns": {
        "0": "192.168.0.1",
        "1": "0.0.0.0"
      }
    }
  },
  "state": {
    "AutoConnect": true,
    "AutoReconnect": true,
    "Persistent": true,
    "isConnected": true,
    "status": "WL_CONNECTED"
  }
}
========================================
ap_probe_send over, rest wifi status to disassoc
state: 5 -> 0 (1)
rm 0
pm close 7
wifi evt: 1
STA disconnect: 200
scandone
no MYWIFISSID_OTHER found, reconnect after 1s
wifi evt: 1
STA disconnect: 201
reconnect
scandone
no MYWIFISSID_OTHER found, reconnect after 1s
wifi evt: 1
STA disconnect: 201
reconnect
========================================
Mode: STA
PHY mode: N
Channel: 14
AP id: 0
Status: 1
Auto connect: 1
SSID (6): MYWIFISSID_OTHER
Passphrase (19): MYWIFIPSK_OTHER
BSSID set: 0
{
  "chip_id": "181458",
  "wifi": {
    "SleepMode": "WIFI_MODEM_SLEEP",
    "mode": "WIFI_STA",
    "ap": {
      "ssid": "ESP_181458",
      "psk": "",
      "ip": "0.0.0.0",
      "mac": "DE:4F:22:18:14:58",
      "station_num": 0
    },
    "station": {
      "ssid": "MYWIFISSID_OTHER",
      "psk": "MYWIFIPSK_OTHER",
      "ip": "0.0.0.0",
      "hostname": "ESP_181458",
      "mac": "DC:4F:22:18:14:58",
      "subnet": "0.0.0.0",
      "gateway": "0.0.0.0",
      "dns": {
        "0": "192.168.0.1",
        "1": "0.0.0.0"
      }
    }
  },
  "state": {
    "AutoConnect": true,
    "AutoReconnect": true,
    "Persistent": true,
    "isConnected": false,
    "status": "WL_DISCONNECTED"
  }
}
========================================

[RAlexeev]

And second bug, which I encountered, function WiFi.setAutoConnect(false); doesn't set AutoConnect to false, if persistent is false: WiFi.persistent(false);. See example sketch below, compiled by Arduino IDE v. 1.8.5:

#include <ESP8266WiFi.h>
#include <ArduinoJson.h>


const char* ssid = "MYWIFISSID";
const char* password = "MYWIFIPSK";


void printDebug() {
  DynamicJsonDocument doc;
  JsonObject& obj = doc.to<JsonObject>();

  obj["chip_id"] = String(ESP.getChipId(), HEX);

  JsonObject& wifi = obj.createNestedObject("wifi");
  switch (WiFi.getSleepMode()) {
    case WIFI_NONE_SLEEP:
      wifi["SleepMode"] = "WIFI_NONE_SLEEP";
      break;
    case WIFI_LIGHT_SLEEP:
      wifi["SleepMode"] = "WIFI_LIGHT_SLEEP";
      break;
    case WIFI_MODEM_SLEEP:
      wifi["SleepMode"] = "WIFI_MODEM_SLEEP";
      break;
    default:
      wifi["SleepMode"] = "UNKNOWN";
  }
  
  switch (WiFi.getMode()) {
    case WIFI_OFF:
      wifi["mode"] = "WIFI_OFF";
      break;
    case WIFI_STA:
      wifi["mode"] = "WIFI_STA";
      break;
    case WIFI_AP:
      wifi["mode"] = "WIFI_AP";
      break;
    case WIFI_AP_STA:
      wifi["mode"] = "WIFI_AP_STA";
      break;
    default:
      wifi["mode"] = "UNKNOWN";
  }
  
  JsonObject& ap = wifi.createNestedObject("ap");
  ap["ssid"] = WiFi.softAPSSID();
  ap["psk"] = WiFi.softAPPSK();
  ap["ip"] = WiFi.softAPIP().toString();
  ap["mac"] = WiFi.softAPmacAddress();
  ap["station_num"] = (uint8_t) WiFi.softAPgetStationNum();
  
  JsonObject& station = wifi.createNestedObject("station");
  station["ssid"] = WiFi.SSID();
  station["psk"] = WiFi.psk();
  station["ip"] = WiFi.localIP().toString();
  station["hostname"] = WiFi.hostname();
  station["mac"] = WiFi.macAddress();
  station["subnet"] = WiFi.subnetMask().toString();
  station["gateway"] = WiFi.gatewayIP().toString();
  
  JsonObject& dns = station.createNestedObject("dns");
  dns["0"] = WiFi.dnsIP(0).toString();
  dns["1"] = WiFi.dnsIP(1).toString();

  JsonObject& states = obj.createNestedObject("state");
  states["AutoConnect"] = WiFi.getAutoConnect();
  states["AutoReconnect"] = WiFi.getAutoReconnect();
  states["Persistent"] = WiFi.getPersistent();
  states["isConnected"] = WiFi.isConnected();

  switch (WiFi.status()) {
    case WL_CONNECTED:
      states["status"] = "WL_CONNECTED";
      break;
    case WL_NO_SHIELD:
      states["status"] = "WL_NO_SHIELD";
      break;
    case WL_IDLE_STATUS:
      states["status"] = "WL_IDLE_STATUS";
      break;
    case WL_NO_SSID_AVAIL:
      states["status"] = "WL_NO_SSID_AVAIL";
      break;
    case WL_SCAN_COMPLETED:
      states["status"] = "WL_SCAN_COMPLETED";
      break;
    case WL_CONNECT_FAILED:
      states["status"] = "WL_CONNECT_FAILED";
      break;
    case WL_CONNECTION_LOST:
      states["status"] = "WL_CONNECTION_LOST";
      break;
    case WL_DISCONNECTED:
      states["status"] = "WL_DISCONNECTED";
      break;
    default:
      states["status"] = "UNKNOWN";
  }

  WiFi.printDiag(Serial);
  serializeJsonPretty(obj, Serial);
}


void setup()
{
  Serial.setDebugOutput(true);
  Serial.begin(115200);
  delay(1000);

  WiFi.setAutoConnect(false);
  WiFi.persistent(false);

  WiFi.mode(WIFI_STA);

  WiFi.begin(ssid, password);
  while (WiFi.status() != WL_CONNECTED) {
    delay(500);
    Serial.print(".");
  }
}


void loop()
{
  delay(10000);

  Serial.println("========================================");
  printDebug();
  Serial.println();
  Serial.println("========================================");
}

Serial monitor output:

SDK:2.2.1(cfd48f3)/Core:2.4.1-104-g1eb0645d/lwIP:2.0.3(STABLE-2_0_3_RELEASE/glue:arduino-2.4.1-13-g163bb82)/BearSSL:94e9704
bcn 0
del if1
usl
mode : sta(dc:4f:22:18:14:58)
add if0
wifi evt: 8
.wifi evt: 2
....scandone
state: 0 -> 2 (b0)
.state: 2 -> 3 (0)
state: 3 -> 5 (10)
add 0
aid 5
cnt 

connected with MYWIFISSID, channel 6
dhcp client start...
wifi evt: 0
...ip:192.168.43.228,mask:255.255.255.0,gw:192.168.43.1
wifi evt: 3
.pm open,type:2 0
========================================
Mode: STA
PHY mode: N
Channel: 6
AP id: 0
Status: 5
Auto connect: 1
SSID (10): MYWIFISSID
Passphrase (9): MYWIFIPSK
BSSID set: 0
{
  "chip_id": "181458",
  "wifi": {
    "SleepMode": "WIFI_MODEM_SLEEP",
    "mode": "WIFI_STA",
    "ap": {
      "ssid": "ESP_181458",
      "psk": "",
      "ip": "0.0.0.0",
      "mac": "DE:4F:22:18:14:58",
      "station_num": 0
    },
    "station": {
      "ssid": "MYWIFISSID",
      "psk": "MYWIFIPSK",
      "ip": "192.168.43.228",
      "hostname": "ESP_181458",
      "mac": "DC:4F:22:18:14:58",
      "subnet": "255.255.255.0",
      "gateway": "192.168.43.1",
      "dns": {
        "0": "192.168.43.1",
        "1": "0.0.0.0"
      }
    }
  },
  "state": {
    "AutoConnect": true,
    "AutoReconnect": true,
    "Persistent": false,
    "isConnected": true,
    "status": "WL_CONNECTED"
  }
}
========================================

UPD: Now WiFi.setAutoConnect doesn't set AutoConnect to false even when persistent is true.

[d-a-v]

@RAlexeev lwip2 is meant to follow lwip1.4 behavior regarding link layer connection status.
To help narrowing the source of this issue, can you please verify whether same things happen when using lwip1.4 ?

[RAlexeev]

Using lwip1.4 doesn't solve this problem. I shortened my sketch for clarity:

#include <ESP8266WiFi.h>

void setup()
{
  Serial.setDebugOutput(true);
  Serial.begin(115200);
  delay(1000);

  WiFi.setAutoConnect(false);

  Serial.print("AutoConnect: ");
  Serial.println(WiFi.getAutoConnect() ? "Yes" : "No");
}

void loop() { }

Serial monitor output for lwip2:

SDK:2.2.1(cfd48f3)/Core:2.4.1-104-g1eb0645d/lwIP:2.0.3(STABLE-2_0_3_RELEASE/glue:arduino-2.4.1-13-g163bb82)/BearSSL:94e9704
AutoConnect: Yes
wifi evt: 7

Serial monitor output for lwip1.4:

SDK:2.2.1(cfd48f3)/Core:2.4.1-104-g1eb0645d/lwIP:1.4.0rc2/BearSSL:94e9704
AutoConnect: Yes
wifi evt: 7

[d-a-v]

Thanks !
I can't reproduce.
Have you tried the Tools>Erase Flash>All Flash Contents option ?

[RAlexeev]

I remember that some time ago I didnt have these problems. And now it seems to me that it happened after erasing flash: Sketch + WiFi Settings. If I select this errasing option, then function setAutoConnect doesn't set AutoConnect to false. But it set AutoConnect to false, if I add this string WiFi.mode(mode); to my sketch before setAutoConnect.

#include <ESP8266WiFi.h>

void setup()
{
  Serial.setDebugOutput(true);
  Serial.begin(115200);
  delay(1000);

  WiFi.mode(WIFI_AP_STA);
  WiFi.setAutoConnect(false);   // successfully sets AutoConnect to false, if there's previous string

  Serial.print("AutoConnect: ");
  Serial.println(WiFi.getAutoConnect() ? "Yes" : "No");
}

void loop() { }

If I upload this sketch, erasing only sketch, then setAutoConnect works fine without additional string WiFi.mode(mode);.

[d-a-v]

Thanks for the report,
Should it be mentioned in the documentation to use WiFi.setAutoConnect() (or is it only WiFi.getAutoConnect()?) after WiFi.mode(WIFI_AP_STA) or WiFi.mode(WIFI_STA) ?.

[RAlexeev]

Thank you!

WiFi.setAutoConnect(false); works for me only after WiFi.mode(WIFI_STA); or WiFi.mode(WIFI_AP_STA);. But WiFi.mode(WIFI_OFF); and WiFi.mode(WIFI_AP); doesn't affect for WiFi.setAutoConnect(false); and AutoConnect is true after that. Even more, if I set WiFi.setAutoConnect(false); after WiFi.mode(WIFI_AP_STA); or WiFi.mode(WIFI_AP); and then restart ESP8266, Access Point will be created anyway. And that seems strange, AP's SSID will be empty after WiFi.softAPdisconnect();, not even default value after module restart. Is there way to turn off softAP auto creation? Especially empty SSID is annoying.

My sketch:

#include <ESP8266WiFi.h>

void setup() {
  Serial.setDebugOutput(true);
  Serial.begin(115200);
  delay(1000);

  Serial.print("AutoConnect: ");
  Serial.println(WiFi.getAutoConnect() ? "Yes" : "No");

  WiFi.mode(WIFI_AP);
  WiFi.setAutoConnect(false);

  Serial.print("AutoConnect: ");
  Serial.println(WiFi.getAutoConnect() ? "Yes" : "No");

  Serial.print("SSID: ");
  Serial.println(WiFi.softAPSSID());
  Serial.print("PSK: ");
  Serial.println(WiFi.softAPPSK());
  Serial.print("IP: ");
  Serial.println(WiFi.softAPIP());
  
  delay(1000);
  WiFi.softAPdisconnect();  // it could be WiFi.softAPdisconnect(true);, it doesn't matter
  delay(1000);
  
  Serial.print("SSID: ");
  Serial.println(WiFi.softAPSSID());
  Serial.print("PSK: ");
  Serial.println(WiFi.softAPPSK());
  Serial.print("IP: ");
  Serial.println(WiFi.softAPIP());
}

void loop() { }

First execution after firmware uploading:

SDK:2.2.1(cfd48f3)/Core:2.4.1-104-g1eb0645d/lwIP:2.0.3(STABLE-2_0_3_RELEASE/glue:arduino-2.4.1-13-g163bb82)/BearSSL:94e9704
AutoConnect: Yes
AutoConnect: Yes
SSID: ESP_180B0C
PSK: 
IP: 192.168.4.1
bcn 0
del if1
usl
add if1
dhcp server start:(ip:192.168.4.1,mask:255.255.255.0,gw:192.168.4.1)
bcn 100
bcn 0
del if1
usl
mode : null
wifi evt: 8
SSID: 
PSK: 
IP: 192.168.4.1

Second execution (only restart without firmware uploading):

SDK:2.2.1(cfd48f3)/Core:2.4.1-104-g1eb0645d/lwIP:2.0.3(STABLE-2_0_3_RELEASE/glue:arduino-2.4.1-13-g163bb82)/BearSSL:94e9704
AutoConnect: Yes
mode : softAP(de:4f:22:18:0b:0c)
add if1
dhcp server start:(ip:192.168.4.1,mask:255.255.255.0,gw:192.168.4.1)
bcn 100
AutoConnect: Yes
SSID: 
PSK: 
IP: 192.168.4.1
wifi evt: 8
bcn 0
del if1
usl
add if1
dhcp server start:(ip:192.168.4.1,mask:255.255.255.0,gw:192.168.4.1)
bcn 100
bcn 0
del if1
usl
mode : null
wifi evt: 8
SSID: 
PSK: 
IP: 192.168.4.1

[RAlexeev]

As I understand, WiFi.softAPdisconnect(true) switches the soft-AP mode off, but not affects SSID/password stored in flash, because persistent is false. But after restart ESP I see network with default SSID (in my case it's ESP_181458) instead of my custom name "My_ESP".

#include <ESP8266WiFi.h>

void setup() {
  Serial.setDebugOutput(true);
  Serial.begin(115200);
  delay(30000);

  Serial.print("SSID: ");
  Serial.println(WiFi.softAPSSID());
  Serial.print("PSK: ");
  Serial.println(WiFi.softAPPSK());
  Serial.print("IP: ");
  Serial.println(WiFi.softAPIP());
  
  WiFi.persistent(false);
  WiFi.mode(WIFI_AP);
  WiFi.softAP("My_ESP");

  Serial.print("SSID: ");
  Serial.println(WiFi.softAPSSID());
  Serial.print("PSK: ");
  Serial.println(WiFi.softAPPSK());
  Serial.print("IP: ");
  Serial.println(WiFi.softAPIP());
  
  delay(30000);
  WiFi.softAPdisconnect();
  delay(1000);
  
  Serial.print("SSID: ");
  Serial.println(WiFi.softAPSSID());
  Serial.print("PSK: ");
  Serial.println(WiFi.softAPPSK());
  Serial.print("IP: ");
  Serial.println();
}

void loop() { }

Serial monitor output:

SDK:2.2.1(cfd48f3)/Core:2.4.1-104-g1eb0645d/lwIP:2.0.3(STABLE-2_0_3_RELEASE/glue:arduino-2.4.1-13-g163bb82)/BearSSL:94e9704
wifi evt: 7
wifi evt: 7
wifi evt: 7
wifi evt: 7
wifi evt: 7
SSID: ESP_181458
PSK: 
IP: 192.168.4.1
bcn 0
del if1
usl
add if1
dhcp server start:(ip:192.168.4.1,mask:255.255.255.0,gw:192.168.4.1)
bcn 100
SSID: My_ESP
PSK: 
IP: 192.168.4.1
wifi evt: 7
wifi evt: 7
wifi evt: 7
wifi evt: 7
wifi evt: 7
bcn 0
del if1
usl
add if1
dhcp server start:(ip:192.168.4.1,mask:255.255.255.0,gw:192.168.4.1)
bcn 100
wifi evt: 7
wifi evt: 7
SSID: 
PSK: 
IP: 
wifi evt: 7
wifi evt: 7
wifi evt: 7
wifi evt: 7
wifi evt: 7

Restart ESP

SDK:2.2.1(cfd48f3)/Core:2.4.1-104-g1eb0645d/lwIP:2.0.3(STABLE-2_0_3_RELEASE/glue:arduino-2.4.1-13-g163bb82)/BearSSL:94e9704
wifi evt: 7
wifi evt: 7
wifi evt: 7
wifi evt: 7
wifi evt: 7
SSID: ESP_181458
PSK: 
IP: 192.168.4.1
bcn 0
del if1
usl
add if1
dhcp server start:(ip:192.168.4.1,mask:255.255.255.0,gw:192.168.4.1)
bcn 100
SSID: My_ESP
PSK: 
IP: 192.168.4.1
wifi evt: 7
wifi evt: 7
wifi evt: 7
wifi evt: 7
wifi evt: 7
bcn 0
del if1
usl
add if1
dhcp server start:(ip:192.168.4.1,mask:255.255.255.0,gw:192.168.4.1)
bcn 100
SSID: 
PSK: 
IP: 
wifi evt: 7
wifi evt: 7
wifi evt: 7
wifi evt: 7
wifi evt: 7

Sometimes I see these three networks at the same time:

NAME    CHAN  SSID            BSSID              SECURITY   SIGNAL
AP[1]   1     My_ESP          DE:4F:22:18:14:58  --         100
AP[2]   1     ESP_181458      DE:4F:22:18:14:58  --         100
AP[3]   1     --              DE:4F:22:18:14:58  --         100

May be you could give me a clue how to disable default SoftAP at start.