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[GH-ISSUE #809] Spurious IP Address #677
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Originally created by @W4KRL on GitHub (Jan 16, 2019).
Original GitHub issue: https://github.com/tzapu/WiFiManager/issues/809
Basic Infos
Hardware
WiFimanager Branch/Release:
Esp8266/Esp32:
Hardware: ESP-12e, esp01, esp25
ESP Core Version: 2.4.0, staging
Description
When running the AutoConnectWithFeedbackLED example, the device spins up 192.168.244.1 instead of 192.168.4.1. This has happened with every example I tried. Also used some fresh D1 Minis with same result. Also used release version 0.14 with same results.
Settings in IDE (Arduino 1.8.8)
Module: LOLIN(WEMOS) D1 R2 & mini
Additional libraries:
#include <Ticker.h>
Sketch
// LED will blink when in config mode
#include <WiFiManager.h> // https://github.com/tzapu/WiFiManager
//for LED status
#include <Ticker.h>
Ticker ticker;
int LED = BUILTIN_LED;
void tick()
{
//toggle state
digitalWrite(LED, !digitalRead(LED)); // set pin to the opposite state
}
//gets called when WiFiManager enters configuration mode
void configModeCallback (WiFiManager *myWiFiManager) {
Serial.println("Entered config mode");
Serial.println(WiFi.softAPIP());
//if you used auto generated SSID, print it
Serial.println(myWiFiManager->getConfigPortalSSID());
//entered config mode, make led toggle faster
ticker.attach(0.2, tick);
}
void setup() {
// put your setup code here, to run once:
Serial.begin(115200);
//set led pin as output
pinMode(LED, OUTPUT);
// start ticker with 0.5 because we start in AP mode and try to connect
ticker.attach(0.6, tick);
//WiFiManager
//Local intialization. Once its business is done, there is no need to keep it around
WiFiManager wm;
//reset settings - for testing
// wm.resetSettings();
//set callback that gets called when connecting to previous WiFi fails, and enters Access Point mode
wm.setAPCallback(configModeCallback);
//fetches ssid and pass and tries to connect
//if it does not connect it starts an access point with the specified name
//here "AutoConnectAP"
//and goes into a blocking loop awaiting configuration
if (!wm.autoConnect()) {
Serial.println("failed to connect and hit timeout");
//reset and try again, or maybe put it to deep sleep
ESP.restart();
delay(1000);
}
//if you get here you have connected to the WiFi
Serial.println("connected...yeey :)");
ticker.detach();
//keep LED on
digitalWrite(LED, LOW);
}
void loop() {
// put your main code here, to run repeatedly:
}
Debug Messages
*WM: Connection result:
*WM: 4
*WM:
*WM: Configuring access point...
*WM: AutoConnectAP
*WM: password
*WM: Custom AP IP/GW/Subnet
*WM: AP IP address:
*WM: 192.168.244.1 <===== expected 192.168.4.1
*WM: HTTP server started
*WM: Handle root
*WM: Request redirected to captive portal
*WM: Handle root
*WM: Request redirected to captive portal
*WM: Handle root
*WM: Request redirected to captive portal
*WM: Handle root
*WM: Handle root
*WM: Handle root
*WM: Handle root
*WM: Info
*WM: Sent info page
@tablatronix commented on GitHub (Jan 16, 2019):
I saw this in another issue hmmm
@domingosl commented on GitHub (Jan 17, 2019):
My ESPs always spins up the 192.168.244.1 as the captive portal, is it not the desired behavior?
I remember a year back an older version of this library worked on 192.168.4.1 by default. I just assume that the latest versions use 192.168.244.1 instead.
@pieman64 commented on GitHub (Jan 17, 2019):
Mine is also 192.168.244.1
@Joeboyc2 commented on GitHub (Jan 17, 2019):
I've seen this behaviour also with a sketch that im currently working on,
but it is not consistent, 9 times out of 10 I will see 192.168.4.1
I'm not aware of a way to force this other ip so cant say why it happens
@tablatronix commented on GitHub (Jan 17, 2019):
It should always be
192.168.4.1that is the default ip@tablatronix commented on GitHub (Jan 17, 2019):
erase flash , this is probably corrupt flash problem
@pieman64 commented on GitHub (Jan 17, 2019):
I have previously erased the flash and it still comes back at 192.168.244.1.
AFAIK when I send the bin file out to the world they also use 244.1.
@domingosl commented on GitHub (Jan 17, 2019):
I can also confirm, all my ESPs on the latest version of WiFiManager (Master) runs on 244.1
@tablatronix commented on GitHub (Jan 17, 2019):
are you confirming this by actually accessing it , or serial output ?
@tablatronix commented on GitHub (Jan 17, 2019):
hmm
https://github.com/esp8266/Arduino/blob/master/libraries/ESP8266WiFi/src/ESP8266WiFiAP.cpp#L173
@domingosl commented on GitHub (Jan 17, 2019):
Both
@tablatronix commented on GitHub (Jan 17, 2019):
I cannot make sense of this, some docs on the net clearly say that 244.1 is the def ip in softap, I have never ever seen this ip. Other things say 192.168.4.1
@tablatronix commented on GitHub (Jan 17, 2019):
I think 244.1 is the ip if the custom ip struct from flash or softapconfig is invalid, so I still think this sounds like some kind of flash corruption or esp bug.
another possibility is that master branch is setting ipconfig when it was not set or supposed to and corrupting it.
can you reproduce on development branch ?
@W4KRL commented on GitHub (Jan 18, 2019):
I have cleared the SPIFFS several times and tried using earlier versions of WiFi Manager back to 0.9 all with the result that the AP comes up as 192.168.244.1.
Two screen captures are attached showing the captive screens. BTW, is there any way to suppress the IP address forms?
Here is serial output from the development version running the AutoConnectWithFeedbackLED example:
*WM: [1] AutoConnect
*WM: [2] Connecting as wifi client...
*WM: [2] Custom STA IP/GW/Subnet/DNS
*WM: [1] STA IP set: (IP unset)
*WM: [3] WIFI station disconnect
*WM: [1] No saved credentials, skipping wifi
*WM: [2] Connection result: WL_NO_SSID_AVAIL
*WM: [3] lastconxresult: WL_NO_SSID_AVAIL
*WM: [1] AutoConnect: FAILED
*WM: [3] WIFI station disconnect
*WM: [3] WiFi station enable
*WM: [2] Disabling STA
*WM: [2] Enabling AP
*WM: [1] StartAP with SSID: ESP_3400ac
*WM: [1] Custom AP IP/GW/Subnet:
*WM: [0] [ERROR] softAPConfig failed!
*WM: [2] AP has anonymous access!
*WM: [1] AP IP address: 192.168.244.1
Entered config mode
192.168.244.1
ESP_3400ac
*WM: [3] setupConfigPortal
*WM: [1] Starting Web Portal
*WM: [3] dns server started with ip: 192.168.244.1
*WM: [2] HTTP server started
*WM: [2] WiFi Scan ASYNC started
*WM: [2] Config Portal Running, blocking, waiting for clients...
*WM: [2] WiFi Scan ASYNC completed in 2205 ms
*WM: [2] WiFi Scan ASYNC found: 4
*WM: [2] NUM CLIENTS: 0
@tablatronix commented on GitHub (Jan 18, 2019):
Clearing spiffs is not a full flash erase.
@W4KRL commented on GitHub (Jan 18, 2019):
I ran EraseEsp8266Flash by Ken Taylor https://github.com/kentaylor/EraseEsp8266Flash. It seemed to work. Then immediately ran AutoConnectWithFeedbackLED. Surprisingly, it happily connected to my router! Obviously, Ken's sketch did not erase everything. Can you recommend a way to erase flash without resorting to esptool?
@tablatronix commented on GitHub (Jan 18, 2019):
you need to full erase from esptool or arduino ide
@W4KRL commented on GitHub (Jan 18, 2019):
Please tell me how to do it using the Arduino IDE.
@tablatronix commented on GitHub (Jan 18, 2019):
google it, its in the board menu, I do not use arduino
@domingosl commented on GitHub (Jan 19, 2019):
I don't think this is a flash problem or corrupted memory. I have several ESPs, new and old ones, all of them go to 244.1 with the lasted WiFiManager and ESP8266 Community (lasted on Arduino IDE version 2.5.0-Beta-2 https://github.com/esp8266/Arduino/releases).
There is no reference in Master of WiFiManager to "192.168.244.1" but there is one in the ESP8266 Arduino (https://github.com/esp8266/Arduino/search?q=192.168.244.1&unscoped_q=192.168.244.1) that makes me think of a race condition of something between WiFiManager and the ESP core.
@domingosl commented on GitHub (Jan 19, 2019):
I also see the IP extra fields (Static ip, Static DNS, ...) in the config page as mentioned by @W4KRL and there is no auto-redirect to the captive portal on Windows and Android (Works on Mac and IOS) as I mentioned in this other issue: https://github.com/tzapu/WiFiManager/issues/807 that might be related with this.
@tablatronix commented on GitHub (Jan 20, 2019):
I am fairly certain it is corrupt flash or a bug, as this ip comes from esp lib when ip is invalid.
https://github.com/esp8266/Arduino/issues/5627#issuecomment-455700748
@tablatronix commented on GitHub (Jan 20, 2019):
You see the ip config form? That is odd as it should only show if you are setting config, so maybe it is a I said above that stable version is setting apconfig mistakinly, but I wont fix or investigate it until it is confirmed in development branch
@domingosl commented on GitHub (Jan 20, 2019):
I'll try the dev branch ASAP. BTW, how stable is that branch?
@tablatronix commented on GitHub (Jan 20, 2019):
soso, I would say still alpha as I do not get much feedback about usage that is not bugs, but it is tested and used
https://github.com/tzapu/WiFiManager/issues?q=is%3Aissue+milestone%3Adev+is%3Aopen
@pfeerick commented on GitHub (Jan 25, 2019):
I'm still on the master branch... i.e. v0.14.0, but this may explain why serial output on the clock project I'm working on changed when I moved from v2.4.2 of the ESP8266 core to the 2.5.0 betas... With no changes to the code, 2.5.0 added the
*WM: Custom STA IP/GW/SubnetandIP unsetnotation.From 2.4.2:
From 2.5.0 beta 2:
@tablatronix commented on GitHub (Jan 25, 2019):
github.com/esp8266/Arduino@e3bc3c226b/cores/esp8266/IPAddress.cpp (L133)@tablatronix commented on GitHub (Jan 27, 2019):
It appears that evaluating an ipaddress no longer returns false is not set or null due to changes in ipaddress for ipv6 support. There is now an isset method but it is new so no idea what to do here
@damianargento commented on GitHub (Feb 14, 2019):
Hi! Did you found any solution for this? I have exactly the same issue, I've already erased flash, and even reinstaled all libraries and arduino ide but is still connecting to 192.168.244.1 and showing "IP unset" fields.
@tablatronix commented on GitHub (Feb 14, 2019):
How did you erase?