Baike.dev
Log in
Back to tool/Back to issues
#19093·esp-idf

Cannot connect to WiFi with C3 (IDFGH-18288)

Author: kuro68kCreated Sep 16, 2026Updated Sep 18, 2026
LabelsType: BugStatus: Opened

Answers checklist.

  • I have read the documentation ESP-IDF Programming Guide and the issue is not addressed there.
  • I have updated my IDF branch (master or release) to the latest version and checked that the issue is present there.
  • I have searched the issue tracker for a similar issue and not found a similar issue.

IDF version.

6.1, 5.5.5

Espressif SoC revision.

ESP32-C3 (QFN32) (revision v0.4)

Operating System used.

Windows

How did you build your project?

VS Code IDE

If you are using Windows, please specify command line type.

None

Development Kit.

C3 SuperMini

Power Supply used.

USB

What is the expected behavior?

Connect to WiFi.

What is the actual behavior?

After provisioning, I get

I (45379) app: Received Wi-Fi credentials
        SSID     : (redacted)
        Password : (redacted)
I (51289) wifi:new:<1,1>, old:<1,0>, ap:<255,255>, sta:<1,1>, prof:1, snd_ch_cfg:0x0
I (51289) wifi:state: init -> auth (0xb0)
I (52289) wifi:state: auth -> init (0x200)
I (52299) wifi:Coexist: Wi-Fi connect fail, apply reconnect coex policy

I (52299) wifi:new:<1,0>, old:<1,1>, ap:<255,255>, sta:<1,1>, prof:1, snd_ch_cfg:0x0
I (57119) wifi:new:<1,1>, old:<1,0>, ap:<255,255>, sta:<1,1>, prof:1, snd_ch_cfg:0x0
I (57119) wifi:state: init -> auth (0xb0)
I (58129) wifi:state: auth -> init (0x200)
I (58139) wifi:Coexist: Wi-Fi connect fail, apply reconnect coex policy

I (58139) wifi:new:<1,0>, old:<1,1>, ap:<255,255>, sta:<1,1>, prof:1, snd_ch_cfg:0x0
I (62959) wifi:new:<1,1>, old:<1,0>, ap:<255,255>, sta:<1,1>, prof:1, snd_ch_cfg:0x0
I (62959) wifi:state: init -> auth (0xb0)
I (63969) wifi:state: auth -> init (0x200)
I (63979) wifi:Coexist: Wi-Fi connect fail, apply reconnect coex policy

I (63979) wifi:new:<1,0>, old:<1,1>, ap:<255,255>, sta:<1,1>, prof:1, snd_ch_cfg:0x0
I (68799) wifi:new:<1,1>, old:<1,0>, ap:<255,255>, sta:<1,1>, prof:1, snd_ch_cfg:0x0
I (68799) wifi:state: init -> auth (0xb0)
I (69809) wifi:state: auth -> init (0x200)
I (69819) wifi:Coexist: Wi-Fi connect fail, apply reconnect coex policy

I (69819) wifi:new:<1,0>, old:<1,1>, ap:<255,255>, sta:<1,1>, prof:1, snd_ch_cfg:0x0
I (74639) wifi:new:<1,1>, old:<1,0>, ap:<255,255>, sta:<1,1>, prof:1, snd_ch_cfg:0x0
I (74639) wifi:state: init -> auth (0xb0)
I (75649) wifi:state: auth -> init (0x200)
I (75659) wifi:Coexist: Wi-Fi connect fail, apply reconnect coex policy

I (75659) wifi:new:<1,0>, old:<1,1>, ap:<255,255>, sta:<1,1>, prof:1, snd_ch_cfg:0x0
E (75659) wifi_prov_mgr: STA Disconnected
E (75659) wifi_prov_mgr: Disconnect reason : 2
E (75669) app: Provisioning failed!
        Reason : Wi-Fi station authentication failed
        Please reset to factory and retry provisioning

This is with the V5.5.5 provisioning example, unmodified. I also tried the V6.1 STA example, with hard coded credentials, and it would also not connect.

Steps to reproduce.

  1. Load V5.5.5 provisioning example, or V6.1 station example.

Debug Logs.

plain
See above.

I tried two different routers, one a GL.iNET Flint 2 running a modified OpenWRT, the other a Xiaomi also running a modified OpenWRT.

Both have an SSID with both 2.4 and 5GHz bands enabled, so I tried creating a 2.4GHz only guest network, and got the same result.

I also tried doing a full flash memory erase, which did not help.

Diagnostic report archive.

idf-diag-80e6d386-b803-4bfe-8cf4-765c342222eb.zip

More Information.

No response

Source: espressif/esp-idf

View original on GitHubView discussion on GitHub