Wifi not connected to the esp32 module.

[gaurav0190]

[D][WiFiGeneric.cpp:345] _eventCallback(): Event: 5 - STA_DISCONNECTED
[W][WiFiGeneric.cpp:360] _eventCallback(): Reason: 2 - AUTH_EXPIRE
[D][WiFiGeneric.cpp:345] _eventCallback(): Event: 0 - WIFI_READY
[D][WiFiGeneric.cpp:345] _eventCallback(): Event: 2 - STA_START
[D][WiFiGeneric.cpp:345] _eventCallback(): Event: 2 - STA_START
[D][WiFiGeneric.cpp:345] _eventCallback(): Event: 5 - STA_DISCONNECTED
[W][WiFiGeneric.cpp:360] _eventCallback(): Reason: 2 - AUTH_EXPIRE
[D][WiFiGeneric.cpp:345] _eventCallback(): Event: 0 - WIFI_READY
[D][WiFiGeneric.cpp:345] _eventCallback(): Event: 2 - STA_START
[D][WiFiGeneric.cpp:345] _eventCallback(): Event: 2 - STA_START
[D][WiFiGeneric.cpp:345] _eventCallback(): Event: 5 - STA_DISCONNECTED
[W][WiFiGeneric.cpp:360] _eventCallback(): Reason: 2 - AUTH_EXPIRE
[D][WiFiGeneric.cpp:345] _eventCallback(): Event: 0 - WIFI_READY
[D][WiFiGeneric.cpp:345] _eventCallback(): Event: 2 - STA_START

Originally posted by @panther1 in #1829 (comment)

[gaurav0190]

I also have same issue when i dump the simple WiFi server code example to esp32 but it stuck to connect to the mobile hotspot. when i scan wifi network via the board , it shows the mobile wifi.
please help me

[arizzi]

same here

[lbernstone]

1. Add WiFi.disconnect() at the beginning of setup()
2. Run python esptool.py erase_flash from the command line. This will wipe all code from the device (including the nvs partition).
3. Follow the instructions for posting an issue at ISSUE_TEMPLATE

[me-no-dev]

please try latest master. I just pushed a possible fix. please report if all is good

[arizzi]

I solved (independently of any master fix) it was a router problem solved rebooting it (while most of other devices were connecting to it with no problems I noticed one laptop was also not able to connect anymore hence I suspected the router)

[thehellmaker]

Guys, Thanks for keeping it open. It looks like I am facing same issue with some access points

Where does this happen?

1. Happens on my phone Hotspot (One Plus 6, OxygenOS Version: 9.0.4, Build Number: A6000_22_190123)
2. It doesn't happen on my Wifi router though. It happens only on specific access points

Here is the test scenario and how to reproduct

1. Connect to Access Point
2. Reset the module right after it connects to the access point (Not I am using WiFi.disconnect(true) before Wifi.begin())
3. When it comes back up it goes into infinite AUTH_EXPIRE loop
   No amount of resetting the module helps the only thing that helps is closing doing the hotspot and bringing it back up. Its also shown in logs below that it connected only after NO_AP_FOUND event where I turn my hotspot off.

Here are the logs:

[I][Test_Wifi.cpp:134] connectToStoredAP(): Connecting to stored credentials ***********
[D][WiFiGeneric.cpp:342] _eventCallback(): Event: 0 - WIFI_READY
[D][WiFiGeneric.cpp:342] _eventCallback(): Event: 2 - STA_START
[D][Test_Wifi.cpp:106] WiFiEvent(): [WiFi-event] event: 2

[D][WiFiGeneric.cpp:342] _eventCallback(): Event: 2 - STA_START
[D][Test_Wifi.cpp:106] WiFiEvent(): [WiFi-event] event: 2

[D][Test_Wifi.cpp:106] WiFiEvent(): [WiFi-event] event: 0

[D][WiFiGeneric.cpp:342] _eventCallback(): Event: 4 - STA_CONNECTED
[D][Test_Wifi.cpp:106] WiFiEvent(): [WiFi-event] event: 4


[D][WiFiGeneric.cpp:342] _eventCallback(): Event: 7 - **STA_GOT_IP**
[D][WiFiGeneric.cpp:385] _eventCallback(): STA IP: 192.168.43.40, MASK: 255.255.255.0, GW: 192.168.43.233
[D][Test_Wifi.cpp:106] WiFiEvent(): [WiFi-event] event: 7

[D][Test_Wifi.cpp:109] WiFiEvent(): WiFi connected. IP address: 192.168.43.40
�x␌␎␃���[I][Test_Wifi.cpp:134] connectToStoredAP(): Connecting to stored credentials ***********
[D][WiFiGeneric.cpp:342] _eventCallback(): Event: 0 - WIFI_READY
[D][Test_Wifi.cpp:106] WiFiEvent(): [WiFi-event] event: 0

[D][WiFiGeneric.cpp:342] _eventCallback(): Event: 2 - STA_START
[D][Test_Wifi.cpp:106] WiFiEvent(): [WiFi-event] event: 2

[D][WiFiGeneric.cpp:342] _eventCallback(): Event: 0 - WIFI_READY
[D][WiFiGeneric.cpp:342] _eventCallback(): Event: 2 - STA_START
[D][Test_Wifi.cpp:106] WiFiEvent(): [WiFi-event] event: 2

[D][WiFiGeneric.cpp:342] _eventCallback(): Event: 2 - STA_START
[D][Test_Wifi.cpp:106] WiFiEvent(): [WiFi-event] event: 2

[D][Test_Wifi.cpp:106] WiFiEvent(): [WiFi-event] event: 0

[D][WiFiGeneric.cpp:342] _eventCallback(): Event: 5 - STA_DISCONNECTED
[W][WiFiGeneric.cpp:357] _eventCallback(): Reason: 2 - AUTH_EXPIRE
[D][Test_Wifi.cpp:106] WiFiEvent(): [WiFi-event] event: 5

[D][Test_Wifi.cpp:113] WiFiEvent(): WiFi lost connection
[I][Test_Wifi.cpp:134] connectToStoredAP(): Connecting to stored credentials ***********
[D][WiFiGeneric.cpp:342] _eventCallback(): Event: 0 - WIFI_READY
[D][WiFiGeneric.cpp:342] _eventCallback(): Event: 2 - STA_START
[D][Test_Wifi.cpp:106] WiFiEvent(): [WiFi-event] event: 2

[D][WiFiGeneric.cpp:342] _eventCallback(): Event: 2 - STA_START
[D][Test_Wifi.cpp:106] WiFiEvent(): [WiFi-event] event: 2

[D][Test_Wifi.cpp:106] WiFiEvent(): [WiFi-event] event: 0

[D][WiFiGeneric.cpp:342] _eventCallback(): Event: 5 - STA_DISCONNECTED
[W][WiFiGeneric.cpp:357] _eventCallback(): Reason: 2 - AUTH_EXPIRE
[D][Test_Wifi.cpp:106] WiFiEvent(): [WiFi-event] event: 5


[D][Test_Wifi.cpp:113] WiFiEvent(): WiFi lost connection
[I][Test_Wifi.cpp:134] connectToStoredAP(): Connecting to stored credentials ***********
[D][WiFiGeneric.cpp:342] _eventCallback(): Event: 0 - WIFI_READY
[D][WiFiGeneric.cpp:342] _eventCallback(): Event: 2 - STA_START
[D][Test_Wifi.cpp:106] WiFiEvent(): [WiFi-event] event: 2

[D][WiFiGeneric.cpp:342] _eventCallback(): Event: 2 - STA_START
[D][Test_Wifi.cpp:106] WiFiEvent(): [WiFi-event] event: 2

[D][Test_Wifi.cpp:106] WiFiEvent(): [WiFi-event] event: 0

[D][WiFiGeneric.cpp:342] _eventCallback(): Event: 5 - STA_DISCONNECTED
[W][WiFiGeneric.cpp:357] _eventCallback(): Reason: 2 - AUTH_EXPIRE
[D][Test_Wifi.cpp:106] WiFiEvent(): [WiFi-event] event: 5

[D][Test_Wifi.cpp:113] WiFiEvent(): WiFi lost connection
[I][Test_Wifi.cpp:134] connectToStoredAP(): Connecting to stored credentials ***********
[D][WiFiGeneric.cpp:342] _eventCallback(): Event: 0 - WIFI_READY
[D][WiFiGeneric.cpp:342] _eventCallback(): Event: 2 - STA_START
[D][Test_Wifi.cpp:106] WiFiEvent(): [WiFi-event] event: 2

[D][WiFiGeneric.cpp:342] _eventCallback(): Event: 2 - STA_START
[D][Test_Wifi.cpp:106] WiFiEvent(): [WiFi-event] event: 2

[D][Test_Wifi.cpp:106] WiFiEvent(): [WiFi-event] event: 0

[D][WiFiGeneric.cpp:342] _eventCallback(): Event: 5 - STA_DISCONNECTED
[W][WiFiGeneric.cpp:357] _eventCallback(): Reason: 4 - ASSOC_EXPIRE
[D][Test_Wifi.cpp:106] WiFiEvent(): [WiFi-event] event: 5

[D][Test_Wifi.cpp:113] WiFiEvent(): WiFi lost connection
[I][Test_Wifi.cpp:134] connectToStoredAP(): Connecting to stored credentials ***********
[D][WiFiGeneric.cpp:342] _eventCallback(): Event: 0 - WIFI_READY
[D][WiFiGeneric.cpp:342] _eventCallback(): Event: 2 - STA_START
[D][Test_Wifi.cpp:106] WiFiEvent(): [WiFi-event] event: 2

[D][WiFiGeneric.cpp:342] _eventCallback(): Event: 2 - STA_START
[D][Test_Wifi.cpp:106] WiFiEvent(): [WiFi-event] event: 2

[D][Test_Wifi.cpp:106] WiFiEvent(): [WiFi-event] event: 0

[D][WiFiGeneric.cpp:342] _eventCallback(): Event: 5 - STA_DISCONNECTED
[W][WiFiGeneric.cpp:357] _eventCallback(): Reason: 201 - NO_AP_FOUND
[D][Test_Wifi.cpp:106] WiFiEvent(): [WiFi-event] event: 5

[D][Test_Wifi.cpp:113] WiFiEvent(): WiFi lost connection
[I][Test_Wifi.cpp:134] connectToStoredAP(): Connecting to stored credentials ***********
[D][WiFiGeneric.cpp:342] _eventCallback(): Event: 0 - WIFI_READY
[D][WiFiGeneric.cpp:342] _eventCallback(): Event: 2 - STA_START
[D][Test_Wifi.cpp:106] WiFiEvent(): [WiFi-event] event: 2

[D][WiFiGeneric.cpp:342] _eventCallback(): Event: 2 - STA_START
[D][Test_Wifi.cpp:106] WiFiEvent(): [WiFi-event] event: 2

[D][Test_Wifi.cpp:106] WiFiEvent(): [WiFi-event] event: 0

[D][WiFiGeneric.cpp:342] _eventCallback(): Event: 4 - STA_CONNECTED
[D][Test_Wifi.cpp:106] WiFiEvent(): [WiFi-event] event: 4

[D][WiFiGeneric.cpp:342] _eventCallback(): Event: 7 - STA_GOT_IP
[D][WiFiGeneric.cpp:385] _eventCallback(): STA IP: 192.168.43.40, MASK: 255.255.255.0, GW: 192.168.43.180
[D][Test_Wifi.cpp:106] WiFiEvent(): [WiFi-event] event: 7

[D][Test_Wifi.cpp:109] WiFiEvent(): WiFi connected. IP address: 192.168.43.40

Also I have gone through pretty much all issues ASSOC_EXPIRE and AUTH_EXPIRE. None help this
#653
espressif/esp-idf#738

[SviFi]

I have exactly the same issue as @thehellmaker describes. It does not connect to some hotspots, with infinite auth expire loop. And exactly the same thing, if I restart the hotspot - all of the sudden it connects. Actually, it happened to completely different wifi networks similar way. I need a solution ASAP.

@me-no-dev did you say you made some fixes that could be downloaded? Is it a new version of WiFi.h module? Where is it and how to update it? I am willing to test and report if it works. Thank you!

[sansillusion]

I had the same symptoms at a friend's place. Turns out his router default DHCP settings permitted only 10 devices at the same time.

…

[asetyde]

I've this problems after some time, lease time i think is problem, you can test with static address

[kuoyaoming93]

I have the same problem. I can scan the ssid, but cant connect.
I have to get closer to the AP to connect...

[SviFi]

I had a similar issue. What helped: I updated the Arduino's ESP32 in board manager to version 1.0.2 and it fixed the WiFi module behavior! It appears like there was a bug in the previous one. The second thing that helped in my case was a good quality USB cable. It first sounds crazy that USB cable can affect something like that, but indeed it does! In bad quality USB cables, the voltage drop is very high due to high resistance. This can cause the voltage to be too low for ESP32 and its power-hungry WiFi module to function. In such case, it would generate "Brownout detector triggered" warnings in the serial monitor and WiFi may be unable to connect. Replacing it with good quality USB cable immediately resolves this. It is not only about the length (even though typically the shorter the better), but primarily about quality, I had even 3-meter quality cables behave better than 0.5-meter bad quality one. I hope this information helps!

[Iron24fit]

Still this same problem of AUTH_EXPIRE loop . I don't find a reliable way to face it :(.
Even with no password router ... :/

[asetyde]

This issue is showed from many users also in some our devices not all , 5% on all. But I can't find any solution or bug alert on ESP , @me-no-dev

[me-no-dev]

there are some updates in the 3.2 branch of IDF. I will merge them and rerelease the libs.