[GH-ISSUE #511] Cannot reconnect to saved Wifi network after WiFi.disconnect() without first rebooting #427

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opened 2026-02-28 01:25:14 +03:00 by kerem · 4 comments

kerem commented

2026-02-28 01:25:14 +03:00

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Originally created by @horendus on GitHub (Feb 10, 2018).
Original GitHub issue: https://github.com/tzapu/WiFiManager/issues/511

I'm finding that if I call WiFi.disconnect() and then try to reconnect with wifiManager.autoConnectNoConfigPortal() or wifiManager.autoConnect I fail to reconnect to the same wifi network again.

The connection result are
*WM: Connection timed out
*WM: Connection result:
*WM: 0

If I reboot my ESP8266 which calls wifiManager.autoConnectNoConfigPortal() at startup it connects without issue, so the wifi details are being stored.

If I call WiFi.begin(SSID,PWD) AFTER a WiFi.disconnect() I am able to connect without issue, but as you see I have had to specify the SSID and PWD instead of using the saved ones from WiFiManager.

If I run WiFi.disconnect() and then print the Wifi details to serial I can see the SSID and PSK are blank. But like I have mentioned, if I power cycle the ESP8266 the details are back.
Serial.print(F("SSID:"));Serial.println(WiFi.SSID());
Serial.print(F("PWD:"));Serial.println(WiFi.psk());

Does anyone have a work around for this? My project needs to be able to enabled/disable wifi within the code and rebooting every time I want to reconnect isnt a good solution for this project.

Originally created by @horendus on GitHub (Feb 10, 2018). Original GitHub issue: https://github.com/tzapu/WiFiManager/issues/511 I'm finding that if I call WiFi.disconnect() and then try to reconnect with wifiManager.autoConnectNoConfigPortal() or wifiManager.autoConnect I fail to reconnect to the same wifi network again. The connection result are *WM: Connection timed out *WM: Connection result: *WM: 0 If I reboot my ESP8266 which calls wifiManager.autoConnectNoConfigPortal() at startup it connects without issue, so the wifi details are being stored. If I call WiFi.begin(SSID,PWD) AFTER a WiFi.disconnect() I am able to connect without issue, but as you see I have had to specify the SSID and PWD instead of using the saved ones from WiFiManager. If I run WiFi.disconnect() and then print the Wifi details to serial I can see the SSID and PSK are blank. But like I have mentioned, if I power cycle the ESP8266 the details are back. Serial.print(F("SSID:"));Serial.println(WiFi.SSID()); Serial.print(F("PWD:"));Serial.println(WiFi.psk()); Does anyone have a work around for this? My project needs to be able to enabled/disable wifi within the code and rebooting every time I want to reconnect isnt a good solution for this project.

kerem commented

2026-02-28 01:25:15 +03:00

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@tablatronix commented on GitHub (Feb 10, 2018):

wifi.disconnect wipes config in esp8266

@tablatronix commented on GitHub (Feb 10, 2018): wifi.disconnect wipes config in esp8266

kerem commented

2026-02-28 01:25:15 +03:00

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@tablatronix commented on GitHub (Feb 10, 2018):

also try development branch

@tablatronix commented on GitHub (Feb 10, 2018): also try development branch

kerem commented

2026-02-28 01:25:15 +03:00

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@horendus commented on GitHub (Feb 13, 2018):

Changed WiFi.disconnect() to WiFi.mode(WIFI_OFF)

Seems to allow me to disconnect wifi without loosing details, then re connect with wifiManager.autoConnect

So far have had no issues during testing doing it this way, thoughts? Bad idea?

@horendus commented on GitHub (Feb 13, 2018): Changed WiFi.disconnect() to WiFi.mode(WIFI_OFF) Seems to allow me to disconnect wifi without loosing details, then re connect with wifiManager.autoConnect So far have had no issues during testing doing it this way, thoughts? Bad idea?

kerem commented

2026-02-28 01:25:15 +03:00

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@tablatronix commented on GitHub (Feb 13, 2018):

You can do pesistent(false); WiFi.disconnect()

maybe I will add a public method to wifimanager to help non persistent disconnects, It already exists.

@tablatronix commented on GitHub (Feb 13, 2018): You can do pesistent(false); WiFi.disconnect() maybe I will add a public method to wifimanager to help non persistent disconnects, It already exists.