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[GH-ISSUE #1696] Wifi credentials #1438

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opened 2026-02-28 01:30:04 +03:00 by kerem · 7 comments

kerem commented

2026-02-28 01:30:04 +03:00

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Originally created by @Guytou11 on GitHub (Jan 3, 2024).
Original GitHub issue: https://github.com/tzapu/WiFiManager/issues/1696

After a few months working without any issue, WiFiManager lost the WiFi credentials. They have been put in again through the portal and the ESP32 is working fine again. Any reason why WiFiManager lost these credentials ?

Originally created by @Guytou11 on GitHub (Jan 3, 2024). Original GitHub issue: https://github.com/tzapu/WiFiManager/issues/1696 After a few months working without any issue, WiFiManager lost the WiFi credentials. They have been put in again through the portal and the ESP32 is working fine again. Any reason why WiFiManager lost these credentials ?

kerem commented

2026-02-28 01:30:05 +03:00

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@Chalta commented on GitHub (Sep 10, 2024):

Did wifi manager lose the credentials? How are you sure this is what happened? Perhaps there was a network change? Or the ESP32 flash was erased?

@Chalta commented on GitHub (Sep 10, 2024): _Did_ wifi manager lose the credentials? How are you sure this is what happened? Perhaps there was a network change? Or the ESP32 flash was erased?

kerem commented

2026-02-28 01:30:05 +03:00

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@Guytou11 commented on GitHub (Sep 10, 2024):

Hi, There was no network change. Not sure how the ESP32 flash could have been erased. The ESP32 did still all what it was intented to do, exept that he didn't remember the WiFi credentials. It happened only once, but I am still interested to learn why.

@Guytou11 commented on GitHub (Sep 10, 2024): Hi, There was no network change. Not sure how the ESP32 flash could have been erased. The ESP32 did still all what it was intented to do, exept that he didn't remember the WiFi credentials. It happened only once, but I am still interested to learn why.

kerem commented

2026-02-28 01:30:05 +03:00

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@tablatronix commented on GitHub (Sep 10, 2024):

Cosmic rays

@tablatronix commented on GitHub (Sep 10, 2024): Cosmic rays

kerem commented

2026-02-28 01:30:05 +03:00

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@loloz3 commented on GitHub (Oct 6, 2024):

My ESP8266 is also losing Wifi credentials when there is short power disturbance...
(it is install on a Archery Bow and there are a lot of vibrations)
memcpy is currently used to save them, is it possible to changed and used LitteFS ?

@loloz3 commented on GitHub (Oct 6, 2024): My ESP8266 is also losing Wifi credentials when there is short power disturbance... (it is install on a Archery Bow and there are a lot of vibrations) memcpy is currently used to save them, is it possible to changed and used LitteFS ?

kerem commented

2026-02-28 01:30:05 +03:00

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@B1ackt34 commented on GitHub (Dec 15, 2024):

My ESP8266 is also losing Wifi credentials when there is short power disturbance... (it is install on a Archery Bow and there are a lot of vibrations) memcpy is currently used to save them, is it possible to changed and used LitteFS ?

I'm so curious about your installation ! What does an ESP on a bow?

@B1ackt34 commented on GitHub (Dec 15, 2024): > My ESP8266 is also losing Wifi credentials when there is short power disturbance... (it is install on a Archery Bow and there are a lot of vibrations) memcpy is currently used to save them, is it possible to changed and used LitteFS ? I'm so curious about your installation ! What does an ESP on a bow?

kerem commented

2026-02-28 01:30:05 +03:00

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@tablatronix commented on GitHub (Dec 15, 2024):

Wifi creds are stored in flash by the esp lib, if you are losing them something is wrong with your memory or board

@tablatronix commented on GitHub (Dec 15, 2024): Wifi creds are stored in flash by the esp lib, if you are losing them something is wrong with your memory or board

kerem commented

2026-02-28 01:30:05 +03:00

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@loloz3 commented on GitHub (Dec 15, 2024):

I tested with several ESP8266… and all have the same issue. Currently I must use wifi credentials in my code… I cannot use WifiManager any more ( this is happened too often )
FYI Here my project (in French sorry)
https://loloz3.ddns.net/ArcherTrainer/build.html#hard

@loloz3 commented on GitHub (Dec 15, 2024): I tested with several ESP8266… and all have the same issue. Currently I must use wifi credentials in my code… I cannot use WifiManager any more ( this is happened too often ) FYI Here my project (in French sorry) https://loloz3.ddns.net/ArcherTrainer/build.html#hard