Cant connect to specific router #4380

Viriatto · 2020-10-01T11:24:23Z

Hardware:

Router: Hitron CVE30360
Board: DOIT Devkit V1
Core Installation version: 1.0.4
IDE name: Arduino IDE
Flash Frequency: 80Mhz
PSRAM enabled: (Not sure)
Upload Speed: 921600
Computer OS: Windows 10

Description:

When in station mode, can connect normally to mobile hotspot without any errors or problems, but connecting to home router displays a ton of AUTH_EXPIRE, ASSOC_EXPIRE, NO_AP_FOUND and 4WAY_HANDSHAKE_TIMEOUT errors. Sometimes after dozens of these it ends up connecting for a couple of minutes/seconds before disconnecting again.

What I have tried:

Adding Wifi.disconnect() at the beggining of setup() - Comment
Tried different firmware versions (10.4, 1.03 and 1.02)
Changed router mode from 802.11 g/n to 802.11 b/g/n
Rebooted router
Added these lines of code on setup as suggested in this comment

ESP_ERROR_CHECK(nvs_flash_erase());
nvs_flash_init();
ESP.restart();

I have "trimmed" some of the code for easier readibility, if you think I should post the full code let me know

#include <WiFi.h>
#include "nvs_flash.h"

static void WiFiEvent(WiFiEvent_t event, WiFiEventInfo_t info)
{
  if (event == SYSTEM_EVENT_STA_DISCONNECTED) {
     WiFi.reconnect();
  }
}

void connectWifi() {
  const char* WIFI_SSID = "SSID";
  const char* WIFI_PASSWORD = "PASSWORD";

  IPAddress GATEWAY(192, 168, 1, 1);  
  IPAddress STATIC_IP(192, 168, 1, 80);  
  IPAddress SUBNET(255, 255, 255, 0); 
  
  const char* CONSOLE_CONNECTED = "CONNECTED TO ";
  const char* CONSOLE_IP_ADDRESS = "IP ADDRESS: ";

  WiFi.config(STATIC_IP, GATEWAY, SUBNET);
  WiFi.begin(WIFI_SSID, WIFI_PASSWORD);
  Serial.println("");

  while (WiFi.status() != WL_CONNECTED) {
    delay(500);
    Serial.print(".");
  }
  
  Serial.println("");
  Serial.print(CONSOLE_CONNECTED);
  Serial.println(WIFI_SSID);
  Serial.print(CONSOLE_IP_ADDRESS);
  Serial.println(WiFi.localIP());
}

void setup(void) {
  Serial.begin(115200);
  Serial.println();

  ESP_ERROR_CHECK(nvs_flash_erase());
  nvs_flash_init();
  
  connectWifi();
  WiFi.onEvent(WiFiEvent);
}

void loop(void) {}

Debug Messages when connecting to home router:

...[D][WiFiGeneric.cpp:337] _eventCallback(): Event: 5 - STA_DISCONNECTED
[W][WiFiGeneric.cpp:353] _eventCallback(): Reason: 201 - NO_AP_FOUND
....[D][WiFiGeneric.cpp:337] _eventCallback(): Event: 5 - STA_DISCONNECTED
[W][WiFiGeneric.cpp:353] _eventCallback(): Reason: 201 - NO_AP_FOUND
......[D][WiFiGeneric.cpp:337] _eventCallback(): Event: 5 - STA_DISCONNECTED
[W][WiFiGeneric.cpp:353] _eventCallback(): Reason: 2 - AUTH_EXPIRE
....[D][WiFiGeneric.cpp:337] _eventCallback(): Event: 5 - STA_DISCONNECTED
[W][WiFiGeneric.cpp:353] _eventCallback(): Reason: 201 - NO_AP_FOUND
....[D][WiFiGeneric.cpp:337] _eventCallback(): Event: 5 - STA_DISCONNECTED
[W][WiFiGeneric.cpp:353] _eventCallback(): Reason: 201 - NO_AP_FOUND
.[D][WiFiGeneric.cpp:337] _eventCallback(): Event: 7 - STA_GOT_IP
[D][WiFiGeneric.cpp:381] _eventCallback(): STA IP: 192.168.1.80, MASK: 255.255.255.0, GW: 192.168.1.1
[D][WiFiGeneric.cpp:337] _eventCallback(): Event: 7 - STA_GOT_IP
[D][WiFiGeneric.cpp:381] _eventCallback(): STA IP: 192.168.1.80, MASK: 255.255.255.0, GW: 192.168.1.1
.
CONNECTED TO NOS4920
IP ADDRESS: 192.168.1.80
[D][WiFiGeneric.cpp:337] _eventCallback(): Event: 5 - STA_DISCONNECTED
[W][WiFiGeneric.cpp:353] _eventCallback(): Reason: 15 - 4WAY_HANDSHAKE_TIMEOUT
[D][WiFiGeneric.cpp:337] _eventCallback(): Event: 5 - STA_DISCONNECTED
[W][WiFiGeneric.cpp:353] _eventCallback(): Reason: 201 - NO_AP_FOUND
[D][WiFiGeneric.cpp:337] _eventCallback(): Event: 5 - STA_DISCONNECTED
[W][WiFiGeneric.cpp:353] _eventCallback(): Reason: 4 - ASSOC_EXPIRE
[D][WiFiGeneric.cpp:337] _eventCallback(): Event: 5 - STA_DISCONNECTED
[W][WiFiGeneric.cpp:353] _eventCallback(): Reason: 201 - NO_AP_FOUND

Debug Messages when connecting to mobile hotspot:

[D][WiFiGeneric.cpp:337] _eventCallback(): Event: 0 - WIFI_READY
[D][WiFiGeneric.cpp:337] _eventCallback(): Event: 2 - STA_START

....[D][WiFiGeneric.cpp:337] _eventCallback(): Event: 7 - STA_GOT_IP
[D][WiFiGeneric.cpp:381] _eventCallback(): STA IP: 192.168.1.80, MASK: 255.255.255.0, GW: 192.168.1.1
[D][WiFiGeneric.cpp:337] _eventCallback(): Event: 7 - STA_GOT_IP
[D][WiFiGeneric.cpp:381] _eventCallback(): STA IP: 192.168.1.80, MASK: 255.255.255.0, GW: 192.168.1.1
.
CONNECTED TO HUAWEI
IP ADDRESS: 192.168.1.80

Thank you very much for your help

The text was updated successfully, but these errors were encountered:

atanisoft · 2020-10-01T12:54:41Z

@Viriatto Can you add this to your setup() function:

esp_log_level_set("wifi", ESP_LOG_VERBOSE);
esp_wifi_internal_set_log_level(WIFI_LOG_VERBOSE);
esp_wifi_internal_set_log_mod(WIFI_LOG_MODULE_ALL, WIFI_LOG_SUBMODULE_ALL, true);

You will likely need to add this include as well:

#include <esp_log.h>

Viriatto · 2020-10-01T13:22:35Z

@atanisoft I am getting the following compiler error: 'WIFI_LOG_VERBOSE' was not declared in this scope

I did add the #include <esp_log.h> too

atanisoft · 2020-10-01T13:30:43Z

Sorry you will also need to include:

#include <esp_wifi.h>
#include <esp_wifi_internal.h>

Viriatto · 2020-10-01T13:33:39Z

Don't be sorry I appreciate your help. I have those 3 included but I'm still getting the same compiler error

atanisoft · 2020-10-01T13:38:48Z

Ok, stick with only esp_log_level_set("wifi", ESP_LOG_VERBOSE); and capture the diagnostic output. That may show why you are having connection issues. This will very likely need to be routed over to https://github.com/espressif/esp-idf/issues as well.

Viriatto · 2020-10-01T13:47:38Z

Here is the output:

[D][esp32-hal-cpu.c:178] setCpuFrequencyMhz(): PLL: 320 / 4 = 80 Mhz, APB: 80000000 Hz
I (225) wifi: wifi driver task: 3ffce7a0, prio:23, stack:3584, core=0
I (1375) wifi: wifi firmware version: 7997e4b
I (1375) wifi: config NVS flash: enabled
I (1375) wifi: config nano formating: disabled
I (1376) wifi: Init dynamic tx buffer num: 32
I (1380) wifi: Init data frame dynamic rx buffer num: 32
I (1385) wifi: Init management frame dynamic rx buffer num: 32
I (1391) wifi: Init management short buffer num: 32
I (1396) wifi: Init static rx buffer size: 1600
I (1400) wifi: Init static rx buffer num: 16
I (1403) wifi: Init dynamic rx buffer num: 32
I (1675) wifi: mode : softAP (24:62:ab:ff:39:79)
I (1677) wifi: Total power save buffer number: 16
I (1677) wifi: Init max length of beacon: 752/752
I (1678) wifi: Init max length of beacon: 752/752
[D][WiFiGeneric.cpp:337] _eventCallback(): Event: 0 - WIFI_READY
[D][WiFiGeneric.cpp:337] _eventCallback(): Event: 14 - AP_STOP
I (1695) wifi: mode : sta (24:62:ab:ff:39:78)
[D][WiFiGeneric.cpp:337] _eventCallback(): Event: 2 - STA_START

[D][WiFiGeneric.cpp:337] _eventCallback(): Event: 2 - STA_START
..I (2851) wifi: n:9 0, o:1 0, ap:255 255, sta:9 0, prof:1
....I (5126) wifi: state: init -> auth (b0)
..I (6127) wifi: state: auth -> init (200)
I (6128) wifi: n:9 0, o:9 0, ap:255 255, sta:9 0, prof:1
[D][WiFiGeneric.cpp:337] _eventCallback(): Event: 5 - STA_DISCONNECTED
[W][WiFiGeneric.cpp:353] _eventCallback(): Reason: 2 - AUTH_EXPIRE
....[D][WiFiGeneric.cpp:337] _eventCallback(): Event: 5 - STA_DISCONNECTED
[W][WiFiGeneric.cpp:353] _eventCallback(): Reason: 201 - NO_AP_FOUND
.I (8380) wifi: n:9 0, o:9 0, ap:255 255, sta:9 0, prof:1
I (8381) wifi: state: init -> auth (b0)
..I (9382) wifi: state: auth -> init (200)
I (9383) wifi: n:9 0, o:9 0, ap:255 255, sta:9 0, prof:1
[D][WiFiGeneric.cpp:337] _eventCallback(): Event: 5 - STA_DISCONNECTED
[W][WiFiGeneric.cpp:353] _eventCallback(): Reason: 2 - AUTH_EXPIRE
I (9514) wifi: n:9 0, o:9 0, ap:255 255, sta:9 0, prof:1
I (9515) wifi: state: init -> auth (b0)
I (9536) wifi: state: auth -> assoc (0)
..I (10537) wifi: state: assoc -> init (400)
I (10538) wifi: n:9 0, o:9 0, ap:255 255, sta:9 0, prof:1
[D][WiFiGeneric.cpp:337] _eventCallback(): Event: 5 - STA_DISCONNECTED
[W][WiFiGeneric.cpp:353] _eventCallback(): Reason: 4 - ASSOC_EXPIRE

Another boot where it eventually got connected, then disconnected and reconnected again:

[D][esp32-hal-cpu.c:178] setCpuFrequencyMhz(): PLL: 320 / 4 = 80 Mhz, APB: 80000000 Hz
I (43) wifi: wifi driver task: 3ffce6fc, prio:23, stack:3584, core=0
I (494) wifi: wifi firmware version: 7997e4b
I (495) wifi: config NVS flash: enabled
I (495) wifi: config nano formating: disabled
I (495) wifi: Init dynamic tx buffer num: 32
I (499) wifi: Init data frame dynamic rx buffer num: 32
I (504) wifi: Init management frame dynamic rx buffer num: 32
I (510) wifi: Init management short buffer num: 32
I (514) wifi: Init static rx buffer size: 1600
I (519) wifi: Init static rx buffer num: 16
I (522) wifi: Init dynamic rx buffer num: 32
I (614) wifi: mode : sta (24:62:ab:ff:39:78)
[D][WiFiGeneric.cpp:337] _eventCallback(): Event: 0 - WIFI_READY
[D][WiFiGeneric.cpp:337] _eventCallback(): Event: 2 - STA_START

..I (1754) wifi: n:9 0, o:1 0, ap:255 255, sta:9 0, prof:1
....I (3978) wifi: state: init -> auth (b0)
I (3990) wifi: state: auth -> assoc (0)
I (4030) wifi: state: assoc -> run (10)
.......I (7480) wifi: connected with NOS4920, channel 9, BW20
I (7536) wifi: pm start, type: 1

[D][WiFiGeneric.cpp:337] _eventCallback(): Event: 7 - STA_GOT_IP
[D][WiFiGeneric.cpp:381] _eventCallback(): STA IP: 192.168.1.80, MASK: 255.255.255.0, GW: 192.168.1.1
[D][WiFiGeneric.cpp:337] _eventCallback(): Event: 7 - STA_GOT_IP
[D][WiFiGeneric.cpp:381] _eventCallback(): STA IP: 192.168.1.80, MASK: 255.255.255.0, GW: 192.168.1.1
.
CONNECTED TO NOS4920
IP ADDRESS: 192.168.1.80
I (27702) wifi: state: run -> init (6c0)
I (27703) wifi: pm stop, total sleep time: 19116240 us / 20166408 us

I (27703) wifi: n:9 0, o:9 0, ap:255 255, sta:9 0, prof:1
[D][WiFiGeneric.cpp:337] _eventCallback(): Event: 5 - STA_DISCONNECTED
[W][WiFiGeneric.cpp:353] _eventCallback(): Reason: 6 - NOT_AUTHED
I (27840) wifi: n:9 0, o:9 0, ap:255 255, sta:9 0, prof:1
I (27841) wifi: state: init -> auth (b0)
I (28842) wifi: state: auth -> init (200)
I (28843) wifi: n:9 0, o:9 0, ap:255 255, sta:9 0, prof:1
[D][WiFiGeneric.cpp:337] _eventCallback(): Event: 5 - STA_DISCONNECTED
[W][WiFiGeneric.cpp:353] _eventCallback(): Reason: 2 - AUTH_EXPIRE
I (29006) wifi: n:9 0, o:9 0, ap:255 255, sta:9 0, prof:1
I (31234) wifi: state: init -> auth (b0)
I (32235) wifi: state: auth -> init (200)
I (32236) wifi: n:9 0, o:9 0, ap:255 255, sta:9 0, prof:1
[D][WiFiGeneric.cpp:337] _eventCallback(): Event: 5 - STA_DISCONNECTED
[W][WiFiGeneric.cpp:353] _eventCallback(): Reason: 2 - AUTH_EXPIRE
I (32452) wifi: n:9 0, o:9 0, ap:255 255, sta:9 0, prof:1
I (32453) wifi: state: init -> auth (b0)
I (32459) wifi: state: auth -> assoc (0)
I (32522) wifi: state: assoc -> run (10)
I (34859) wifi: connected with NOS4920, channel 9, BW20
I (34869) wifi: pm start, type: 1

[D][WiFiGeneric.cpp:337] _eventCallback(): Event: 7 - STA_GOT_IP
[D][WiFiGeneric.cpp:381] _eventCallback(): STA IP: 192.168.1.80, MASK: 255.255.255.0, GW: 192.168.1.1
[D][WiFiGeneric.cpp:337] _eventCallback(): Event: 7 - STA_GOT_IP
[D][WiFiGeneric.cpp:381] _eventCallback(): STA IP: 192.168.1.80, MASK: 255.255.255.0, GW: 192.168.1.1

As for the issue being routed over to the different repository, do I have to do something on my end for it to happen?

Thank you

atanisoft · 2020-10-01T13:57:53Z

Can you try adding WiFi.setSleep(false); in setup() before calling WiFi.begin(...);?

Viriatto · 2020-10-01T14:15:57Z

It seems like it is connecting with much ease now, not getting the AUTH_EXPIRE spam, but it is still often disconnecting after a couple of seconds/minutes:

.I (2168) wifi: state: auth -> init (200)
I (2169) wifi: n:9 0, o:9 0, ap:255 255, sta:9 0, prof:1
[D][WiFiGeneric.cpp:337] _eventCallback(): Event: 5 - STA_DISCONNECTED
[W][WiFiGeneric.cpp:353] _eventCallback(): Reason: 2 - AUTH_EXPIRE
.I (2311) wifi: n:9 0, o:9 0, ap:255 255, sta:9 0, prof:1
.I (3094) wifi: state: init -> auth (b0)
I (3101) wifi: state: auth -> assoc (0)
I (3131) wifi: state: assoc -> run (10)
...I (4437) wifi: connected with NOS4920, channel 9, BW20
I (4441) wifi: pm start, type: 0

[D][WiFiGeneric.cpp:337] _eventCallback(): Event: 7 - STA_GOT_IP
[D][WiFiGeneric.cpp:381] _eventCallback(): STA IP: 192.168.1.80, MASK: 255.255.255.0, GW: 192.168.1.1
[D][WiFiGeneric.cpp:337] _eventCallback(): Event: 7 - STA_GOT_IP
[D][WiFiGeneric.cpp:381] _eventCallback(): STA IP: 192.168.1.80, MASK: 255.255.255.0, GW: 192.168.1.1
.
CONNECTED TO NOS4920
IP ADDRESS: 192.168.1.80
I (7383) wifi: state: run -> init (fc0)
I (7383) wifi: pm stop, total sleep time: 0 us / 2941615 us

I (7383) wifi: n:9 0, o:9 0, ap:255 255, sta:9 0, prof:1
[D][WiFiGeneric.cpp:337] _eventCallback(): Event: 5 - STA_DISCONNECTED
[W][WiFiGeneric.cpp:353] _eventCallback(): Reason: 15 - 4WAY_HANDSHAKE_TIMEOUT
I (7520) wifi: n:9 0, o:9 0, ap:255 255, sta:9 0, prof:1
I (7520) wifi: state: init -> auth (b0)
I (7525) wifi: state: auth -> assoc (0)
I (7563) wifi: state: assoc -> run (10)
I (10888) wifi: connected with NOS4920, channel 9, BW20
I (10892) wifi: pm start, type: 0

[D][WiFiGeneric.cpp:337] _eventCallback(): Event: 7 - STA_GOT_IP
[D][WiFiGeneric.cpp:381] _eventCallback(): STA IP: 192.168.1.80, MASK: 255.255.255.0, GW: 192.168.1.1
[D][WiFiGeneric.cpp:337] _eventCallback(): Event: 7 - STA_GOT_IP
[D][WiFiGeneric.cpp:381] _eventCallback(): STA IP: 192.168.1.80, MASK: 255.255.255.0, GW: 192.168.1.1
I (13831) wifi: state: run -> init (fc0)
I (13832) wifi: pm stop, total sleep time: 0 us / 2939340 us

I (13832) wifi: n:9 0, o:9 0, ap:255 255, sta:9 0, prof:1
[D][WiFiGeneric.cpp:337] _eventCallback(): Event: 5 - STA_DISCONNECTED
[W][WiFiGeneric.cpp:353] _eventCallback(): Reason: 15 - 4WAY_HANDSHAKE_TIMEOUT
I (13969) wifi: n:9 0, o:9 0, ap:255 255, sta:9 0, prof:1
I (13970) wifi: state: init -> auth (b0)
I (14970) wifi: state: auth -> init (200)
I (14971) wifi: n:9 0, o:9 0, ap:255 255, sta:9 0, prof:1
[D][WiFiGeneric.cpp:337] _eventCallback(): Event: 5 - STA_DISCONNECTED
[W][WiFiGeneric.cpp:353] _eventCallback(): Reason: 2 - AUTH_EXPIRE
I (15114) wifi: n:9 0, o:9 0, ap:255 255, sta:9 0, prof:1
I (15114) wifi: state: init -> auth (b0)
I (15127) wifi: state: auth -> assoc (0)
I (15152) wifi: state: assoc -> run (10)
I (15456) wifi: connected with NOS4920, channel 9, BW20
I (15510) wifi: pm start, type: 0

[D][WiFiGeneric.cpp:337] _eventCallback(): Event: 7 - STA_GOT_IP
[D][WiFiGeneric.cpp:381] _eventCallback(): STA IP: 192.168.1.80, MASK: 255.255.255.0, GW: 192.168.1.1
[D][WiFiGeneric.cpp:337] _eventCallback(): Event: 7 - STA_GOT_IP
[D][WiFiGeneric.cpp:381] _eventCallback(): STA IP: 192.168.1.80, MASK: 255.255.255.0, GW: 192.168.1.1
I (18420) wifi: state: run -> init (fc0)
I (18421) wifi: pm stop, total sleep time: 0 us / 2911000 us

I (18421) wifi: n:9 0, o:9 0, ap:255 255, sta:9 0, prof:1
[D][WiFiGeneric.cpp:337] _eventCallback(): Event: 5 - STA_DISCONNECTED
[W][WiFiGeneric.cpp:353] _eventCallback(): Reason: 15 - 4WAY_HANDSHAKE_TIMEOUT
I (18558) wifi: n:9 0, o:9 0, ap:255 255, sta:9 0, prof:1
I (18558) wifi: state: init -> auth (b0)
I (18568) wifi: state: auth -> assoc (0)
I (18617) wifi: state: assoc -> run (10)
I (19285) wifi: connected with NOS4920, channel 9, BW20
I (19290) wifi: pm start, type: 0

[D][WiFiGeneric.cpp:337] _eventCallback(): Event: 7 - STA_GOT_IP
[D][WiFiGeneric.cpp:381] _eventCallback(): STA IP: 192.168.1.80, MASK: 255.255.255.0, GW: 192.168.1.1
[D][WiFiGeneric.cpp:337] _eventCallback(): Event: 7 - STA_GOT_IP
[D][WiFiGeneric.cpp:381] _eventCallback(): STA IP: 192.168.1.80, MASK: 255.255.255.0, GW: 192.168.1.1
I (22229) wifi: state: run -> init (fc0)
I (22229) wifi: pm stop, total sleep time: 0 us / 2939624 us

I (22230) wifi: n:9 0, o:9 0, ap:255 255, sta:9 0, prof:1
[D][WiFiGeneric.cpp:337] _eventCallback(): Event: 5 - STA_DISCONNECTED
[W][WiFiGeneric.cpp:353] _eventCallback(): Reason: 15 - 4WAY_HANDSHAKE_TIMEOUT
I (22367) wifi: n:9 0, o:9 0, ap:255 255, sta:9 0, prof:1
I (22367) wifi: state: init -> auth (b0)
I (22375) wifi: state: auth -> assoc (0)
I (22404) wifi: state: assoc -> run (10)
I (22963) wifi: connected with NOS4920, channel 9, BW20
I (22968) wifi: pm start, type: 0

[D][WiFiGeneric.cpp:337] _eventCallback(): Event: 7 - STA_GOT_IP
[D][WiFiGeneric.cpp:381] _eventCallback(): STA IP: 192.168.1.80, MASK: 255.255.255.0, GW: 192.168.1.1
[D][WiFiGeneric.cpp:337] _eventCallback(): Event: 7 - STA_GOT_IP
[D][WiFiGeneric.cpp:381] _eventCallback(): STA IP: 192.168.1.80, MASK: 255.255.255.0, GW: 192.168.1.1
I (25915) wifi: state: run -> init (fc0)
I (25916) wifi: pm stop, total sleep time: 0 us / 2948046 us

I (25916) wifi: n:9 0, o:9 0, ap:255 255, sta:9 0, prof:1
[D][WiFiGeneric.cpp:337] _eventCallback(): Event: 5 - STA_DISCONNECTED
[W][WiFiGeneric.cpp:353] _eventCallback(): Reason: 15 - 4WAY_HANDSHAKE_TIMEOUT
I (26053) wifi: n:9 0, o:9 0, ap:255 255, sta:9 0, prof:1
I (26053) wifi: state: init -> auth (b0)
I (26076) wifi: state: auth -> assoc (0)
I (26115) wifi: state: assoc -> run (10)
I (26494) wifi: connected with NOS4920, channel 9, BW20
I (26498) wifi: pm start, type: 0

[D][WiFiGeneric.cpp:337] _eventCallback(): Event: 7 - STA_GOT_IP
[D][WiFiGeneric.cpp:381] _eventCallback(): STA IP: 192.168.1.80, MASK: 255.255.255.0, GW: 192.168.1.1
[D][WiFiGeneric.cpp:337] _eventCallback(): Event: 7 - STA_GOT_IP
[D][WiFiGeneric.cpp:381] _eventCallback(): STA IP: 192.168.1.80, MASK: 255.255.255.0, GW: 192.168.1.1

atanisoft · 2020-10-01T14:17:11Z

That could be the AP disconnecting the client and not related to the ESP32 itself.

Viriatto · 2020-10-01T14:20:12Z

Yes, because it connects just fine to mobile hotspot, just gets these errors when I try this specific router, any idea why the router could be disconnecting it?

atanisoft · 2020-10-01T14:24:08Z

any idea why the router could be disconnecting it?

Not a clue. Each AP is different and not all are created equal. Many (but not all) mobile hotspots are unreliable due to not being 100% compliant to specs.

DougArmstrong · 2020-10-01T14:25:24Z

I had a similar issue connecting using an ESP32 to run a high powered Switching Charge Controller. Scope leads near the CPU were inducing enough EMI to cause the radio to drop connections. Any thing like this possible in your design?

I did a little googling and found a couple articles where folks were chasing this issue, might not be an ESP32 thing. Might read a few of these and see if there is anything that looks useful. Hope this helps. https://forum.mikrotik.com/viewtopic.php?p=541785

Viriatto · 2020-10-01T14:28:34Z

In this case the mobile hotspot actually works better than my router. Right now it is definitely working better, it fails to connect a couple of times but then connects and holds connection for some good time. Other times I boot it and it just gets stuck in an endless loop.

@DougArmstrong All Im using my board for is to control a small servo, but I did see someone in that link that fixed his problem by changing router password to all lowercase, I will try that later, thank you!

Viriatto · 2020-10-01T17:09:51Z

Tried changing password to lowercase and unfortunately it didn't help

stale · 2020-12-01T08:11:00Z

[STALE_SET] This issue has been automatically marked as stale because it has not had recent activity. It will be closed in 14 days if no further activity occurs. Thank you for your contributions.

TD-er · 2020-12-01T08:36:24Z

Maybe I am missing it in the comments, but what brand access point is causing the issues here?
For example Mikrotik does have a setting to tell the router what "distance" to expect.
Wireless -> WiFi interfaces -> wlan1
Then in Advanced mode: Installation: Any/Indoor/Outdoor

This setting has to do with regulations.
Any and Indoor are the least strict ones.

There are other settings available which may be useful.
Like:

Disconnect timeout
Noise Floor Threshold
Distance

The Distance (ACK-Timeout) setting may need some explanation:

Dynamic - causes AP to detect and use the smallest timeout that works with all connected clients.
Indoor - uses the default ACK timeout value that the hardware chip manufacturer has set.
Number - uses the input value in formula: ACK-timeout = ((distance * 1000) + 299) / 300 us;

stale · 2020-12-01T08:36:27Z

[STALE_CLR] This issue has been removed from the stale queue. Please ensure activity to keep it openin the future.

stale · 2021-01-30T10:47:48Z

[STALE_SET] This issue has been automatically marked as stale because it has not had recent activity. It will be closed in 14 days if no further activity occurs. Thank you for your contributions.

stale · 2021-02-13T12:01:41Z

[STALE_DEL] This stale issue has been automatically closed. Thank you for your contributions.

rajveer01 · 2022-09-25T02:42:08Z

I do not know the cause of the problem, but when I removed all the connections to my espe32 except the USB, It worked for me.

stale bot added the Status: Stale Issue is stale stage (outdated/stuck) label Dec 1, 2020

stale bot removed the Status: Stale Issue is stale stage (outdated/stuck) label Dec 1, 2020

stale bot added the Status: Stale Issue is stale stage (outdated/stuck) label Jan 30, 2021

stale bot closed this as completed Feb 13, 2021

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Cant connect to specific router #4380

Cant connect to specific router #4380

Viriatto commented Oct 1, 2020 •

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Hardware:

atanisoft commented Oct 1, 2020

Viriatto commented Oct 1, 2020 •

edited

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atanisoft commented Oct 1, 2020 •

edited

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Viriatto commented Oct 1, 2020

atanisoft commented Oct 1, 2020

Viriatto commented Oct 1, 2020 •

edited

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atanisoft commented Oct 1, 2020

Viriatto commented Oct 1, 2020

atanisoft commented Oct 1, 2020

Viriatto commented Oct 1, 2020

atanisoft commented Oct 1, 2020

DougArmstrong commented Oct 1, 2020

Viriatto commented Oct 1, 2020

Viriatto commented Oct 1, 2020

stale bot commented Dec 1, 2020

TD-er commented Dec 1, 2020

stale bot commented Dec 1, 2020

stale bot commented Jan 30, 2021

stale bot commented Feb 13, 2021

rajveer01 commented Sep 25, 2022

Cant connect to specific router #4380

Cant connect to specific router #4380

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Viriatto commented Oct 1, 2020 • edited Loading

Hardware:

Description:

What I have tried:

I have "trimmed" some of the code for easier readibility, if you think I should post the full code let me know

Debug Messages when connecting to home router:

Debug Messages when connecting to mobile hotspot:

atanisoft commented Oct 1, 2020

Viriatto commented Oct 1, 2020 • edited Loading

atanisoft commented Oct 1, 2020 • edited Loading

Viriatto commented Oct 1, 2020

atanisoft commented Oct 1, 2020

Viriatto commented Oct 1, 2020 • edited Loading

atanisoft commented Oct 1, 2020

Viriatto commented Oct 1, 2020

atanisoft commented Oct 1, 2020

Viriatto commented Oct 1, 2020

atanisoft commented Oct 1, 2020

DougArmstrong commented Oct 1, 2020

Viriatto commented Oct 1, 2020

Viriatto commented Oct 1, 2020

stale bot commented Dec 1, 2020

TD-er commented Dec 1, 2020

stale bot commented Dec 1, 2020

stale bot commented Jan 30, 2021

stale bot commented Feb 13, 2021

rajveer01 commented Sep 25, 2022

Viriatto commented Oct 1, 2020 •

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Viriatto commented Oct 1, 2020 •

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atanisoft commented Oct 1, 2020 •

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Viriatto commented Oct 1, 2020 •

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