[GH-ISSUE #1132] After Timeout, Retry Connecting to Last Known SSID/Password #969

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opened 2026-02-28 01:27:53 +03:00 by kerem · 3 comments

kerem commented

2026-02-28 01:27:53 +03:00

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Originally created by @bwjohns4 on GitHub (Oct 5, 2020).
Original GitHub issue: https://github.com/tzapu/WiFiManager/issues/1132

This is just a question, is there a built-in way to retry connecting to the last known SSID/Password without a hard reset? I've done this and it works with the reset

if (!wifiManager.autoConnect("MY SSID")){
BWJ_DEBUG_PRINTLN("failed to connect and hit timeout, now resetting");
delay(3000);
ESP.restart();
}

but if I try:

while (!wifiManager.autoConnect("MY SSID")){
BWJ_DEBUG_PRINTLN("failed to connect and hit timeout, now retrying");
delay(3000);
}

It does not work. Is there an easy way to fix this so that a retry with the last successful credentials is possible without actually resetting and toggling relay pin states?

Originally created by @bwjohns4 on GitHub (Oct 5, 2020). Original GitHub issue: https://github.com/tzapu/WiFiManager/issues/1132 This is just a question, is there a built-in way to retry connecting to the last known SSID/Password without a hard reset? I've done this and it works with the reset if (!wifiManager.autoConnect("MY SSID")){ BWJ_DEBUG_PRINTLN("failed to connect and hit timeout, now resetting"); delay(3000); ESP.restart(); } but if I try: while (!wifiManager.autoConnect("MY SSID")){ BWJ_DEBUG_PRINTLN("failed to connect and hit timeout, now retrying"); delay(3000); } It does not work. Is there an easy way to fix this so that a retry with the last successful credentials is possible without actually resetting and toggling relay pin states?

kerem added the

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2026-02-28 01:27:53 +03:00

kerem commented

2026-02-28 01:27:54 +03:00

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@tablatronix commented on GitHub (Oct 5, 2020):

Esp8266 automatically autoreconnects, you can try WiFi.begin()

@tablatronix commented on GitHub (Oct 5, 2020): Esp8266 automatically autoreconnects, you can try WiFi.begin()

kerem commented

2026-02-28 01:27:54 +03:00

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@vginside commented on GitHub (May 23, 2021):

Hi @tablatronix !
I have similar problem i tried using simplified code as below:
#include <ESP8266WiFi.h> //For WiFi Connection
#include <WiFiManager.h> //https://github.com/tzapu/WiFiManager WiFi Configuration Magic

void setup()
{
// put your setup code here, to run once:
Serial.begin(115200);
WiFiManager wifiManager;
wifiManager.setConfigPortalTimeout(10); //Use this function to timeout AP portal page; Parameter time in seconds
if(!(wifiManager.autoConnect())) // check if wifi is connected within configportaltimeout if not restart
{
Serial.println("Failed to connect");
WiFi.mode(WIFI_OFF);
WiFi.mode(WIFI_STA); // explicitly set mode, esp defaults to STA+AP
WiFi.begin();
//ESP.restart();
}
else
{
//if you get here you have connected to the WiFi
Serial.println((String)"Connected to Wifi SSID: "+WiFi.SSID());
Serial.println((String)"Wifi password: "+WiFi.psk());
Serial.print("Connected with IP: ");
Serial.println(WiFi.localIP());
}
}

void loop()
{
if (WiFi.status() != WL_CONNECTED) // Keep checking if wifi Connection is connected or lost
{
Serial.print(".");
delay(500);
}
else
{
Serial.println("Connected!");
delay(500);
}
}

If configuration timesout then device wont reconnect to saved credentials this is problem for powerfail ofc. Any helps?

@vginside commented on GitHub (May 23, 2021): Hi @tablatronix ! I have similar problem i tried using simplified code as below: #include <ESP8266WiFi.h> //For WiFi Connection #include <WiFiManager.h> //https://github.com/tzapu/WiFiManager WiFi Configuration Magic void setup() { // put your setup code here, to run once: Serial.begin(115200); WiFiManager wifiManager; wifiManager.setConfigPortalTimeout(10); //Use this function to timeout AP portal page; Parameter time in seconds if(!(wifiManager.autoConnect())) // check if wifi is connected within configportaltimeout if not restart { Serial.println("Failed to connect"); WiFi.mode(WIFI_OFF); WiFi.mode(WIFI_STA); // explicitly set mode, esp defaults to STA+AP WiFi.begin(); //ESP.restart(); } else { //if you get here you have connected to the WiFi Serial.println((String)"Connected to Wifi SSID: "+WiFi.SSID()); Serial.println((String)"Wifi password: "+WiFi.psk()); Serial.print("Connected with IP: "); Serial.println(WiFi.localIP()); } } void loop() { if (WiFi.status() != WL_CONNECTED) // Keep checking if wifi Connection is connected or lost { Serial.print("."); delay(500); } else { Serial.println("Connected!"); delay(500); } } If configuration timesout then device wont reconnect to saved credentials this is problem for powerfail ofc. Any helps?

kerem commented

2026-02-28 01:27:54 +03:00

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Owner

@vginside commented on GitHub (May 24, 2021):

Hi @tablatronix !
I have similar problem i tried using simplified code as below:
#include <ESP8266WiFi.h> //For WiFi Connection
#include <WiFiManager.h> //https://github.com/tzapu/WiFiManager WiFi Configuration Magic

void setup()
{
// put your setup code here, to run once:
Serial.begin(115200);
WiFiManager wifiManager;
wifiManager.setConfigPortalTimeout(10); //Use this function to timeout AP portal page; Parameter time in seconds
if(!(wifiManager.autoConnect())) // check if wifi is connected within configportaltimeout if not restart
{
Serial.println("Failed to connect");
WiFi.mode(WIFI_OFF);
WiFi.mode(WIFI_STA); // explicitly set mode, esp defaults to STA+AP
WiFi.begin();
//ESP.restart();
}
else
{
//if you get here you have connected to the WiFi
Serial.println((String)"Connected to Wifi SSID: "+WiFi.SSID());
Serial.println((String)"Wifi password: "+WiFi.psk());
Serial.print("Connected with IP: ");
Serial.println(WiFi.localIP());
}
}

void loop()
{
if (WiFi.status() != WL_CONNECTED) // Keep checking if wifi Connection is connected or lost
{
Serial.print(".");
delay(500);
}
else
{
Serial.println("Connected!");
delay(500);
}
}

If configuration timesout then device wont reconnect to saved credentials this is problem for powerfail ofc. Any helps?

Never mind I was using an older version of 0.14.0... Updating it to 0.16.0 resolved it! Not even need to write WiFi.begin() cheers! :)

@vginside commented on GitHub (May 24, 2021): > Hi @tablatronix ! > I have similar problem i tried using simplified code as below: > #include <ESP8266WiFi.h> //For WiFi Connection > #include <WiFiManager.h> //https://github.com/tzapu/WiFiManager WiFi Configuration Magic > > void setup() > { > // put your setup code here, to run once: > Serial.begin(115200); > WiFiManager wifiManager; > wifiManager.setConfigPortalTimeout(10); //Use this function to timeout AP portal page; Parameter time in seconds > if(!(wifiManager.autoConnect())) // check if wifi is connected within configportaltimeout if not restart > { > Serial.println("Failed to connect"); > WiFi.mode(WIFI_OFF); > WiFi.mode(WIFI_STA); // explicitly set mode, esp defaults to STA+AP > WiFi.begin(); > //ESP.restart(); > } > else > { > //if you get here you have connected to the WiFi > Serial.println((String)"Connected to Wifi SSID: "+WiFi.SSID()); > Serial.println((String)"Wifi password: "+WiFi.psk()); > Serial.print("Connected with IP: "); > Serial.println(WiFi.localIP()); > } > } > > void loop() > { > if (WiFi.status() != WL_CONNECTED) // Keep checking if wifi Connection is connected or lost > { > Serial.print("."); > delay(500); > } > else > { > Serial.println("Connected!"); > delay(500); > } > } > > If configuration timesout then device wont reconnect to saved credentials this is problem for powerfail ofc. Any helps? Never mind I was using an older version of 0.14.0... Updating it to 0.16.0 resolved it! Not even need to write WiFi.begin() cheers! :)