Autoreconnect doesn't work due to _arduino_event_cb(): STA Got Same IP

[Dario-Ciceri]

[ 57622][V][WiFiGeneric.cpp:367] _arduino_event_cb(): STA Got Same IP:192.168.173.158 11:35:48.219 -> Got time adjustment from NTP! 11:35:49.962 -> *wm:AutoConnect: FAILED

Hi, I noticed that even if ESP32 connects to WiFi, switching from ethernet module, wifi manager will say *wm:AutoConnect: FAILED but ESP32 is successfully connected...

[tablatronix]

Interesting

[Dario-Ciceri]

I don't know if there's a way to "reset" WiFi and avoid STA Got Same IP by erasing the previous one... I tried many esp API calls but nothing works, even deinit and init again doesn't work... If I reset esp32 it connects without problem and I think it's because it doesn't have "a previous ip"

P.S. with WiFi.reconnect it works even with same IP so it must be WiFiManager library (?) I know there's a flag "connected" which is set true only by `if (WiFi.status() == WL_CONNECTED) { connected = true;

ifdef WM_DEBUG_LEVEL

DEBUG_WM(F("AutoConnect: ESP Already Connected"));

endif

setSTAConfig();
// @todo not sure if this is safe, causes dup setSTAConfig in connectwifi,
// and we have no idea WHAT we are connected to

}`

maybe this piece of code `if (connected || connectWifi(_defaultssid, _defaultpass) == WL_CONNECTED) { //connected

ifdef WM_DEBUG_LEVEL

DEBUG_WM(F("AutoConnect: SUCCESS"));
DEBUG_WM(DEBUG_VERBOSE, F("Connected in"), (String)((millis() - _startconn)) + " ms");
DEBUG_WM(F("STA IP Address:"), WiFi.localIP());

endif` doesn't detect same ip event? but shouldn't WL_CONNECTED works just fine? Maybe if we could set WL_CONNECTED on STA Got Same IP it could works fine

[tablatronix]

Sounds like it might be an ESP lib issue, either way I will see if we can workaround it

is [ 57622][V][WiFiGeneric.cpp:367] _arduino_event_cb(): STA Got Same IP:192.168.173.158 the only event you see?

I wonder if switching ap to ap would also do this?

[Dario-Ciceri]

Sounds like it might be an ESP lib issue, either way I will see if we can workaround it

is [ 57622][V][WiFiGeneric.cpp:367] _arduino_event_cb(): STA Got Same IP:192.168.173.158 the only event you see?

I wonder if switching ap to ap would also do this?

Yes and routine stuff like STA disconnected, start etc due to wifimanager behaviour

Switching from ap to ap? Idk, honestly it would be weird if different AP same IP no?

[Dario-Ciceri]

Sounds like it might be an ESP lib issue, either way I will see if we can workaround it is [ 57622][V][WiFiGeneric.cpp:367] _arduino_event_cb(): STA Got Same IP:192.168.173.158 the only event you see? I wonder if switching ap to ap would also do this?

Yes and routine stuff like STA disconnected, start etc due to wifimanager behaviour

Switching from ap to ap? Idk, honestly it would be weird if different AP same IP no?

oh and also, sometimes a weird error which seems related to // if retry without delay (via begin()), the IDF is still busy even after returning status // E (5130) wifi:sta is connecting, return error // [E][WiFiSTA.cpp:221] begin(): connect failed! but even with if (_aggresiveReconn) delay(1000); sometimes I get // E (5130) wifi:sta is connecting, return error // [E][WiFiSTA.cpp:221] begin(): connect failed!

[Dario-Ciceri]

could you also tell me what's causing hostByName(): DNS Failed for www.google.com ?

I'll follow this: https://github.com/espressif/arduino-esp32/issues/1595#issuecomment-429435687

It seems to work, well I was using a task on core 0 with priority 10... but I never heard of this problem before... maybe it's causing problem with wifimanager too, like not letting events to be detected?

[tablatronix]

What esp version are you using ?

[Dario-Ciceri]

What esp version are you using ?

Dev Module, 2.0.4

[Dario-Ciceri]

ehy @tablatronix I think I found the problem, look here please: https://github.com/espressif/arduino-esp32/issues/653#issuecomment-755851929

and here: https://github.com/espressif/arduino-esp32/issues/1100#issuecomment-392397250

currently I've upgraded to 2.0.11