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[GH-ISSUE #1678] Feature request: connect with specific BSSID obtaining from of a networkscann #1423

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opened 2026-02-28 01:30:01 +03:00 by kerem · 16 comments

kerem commented

2026-02-28 01:30:01 +03:00

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Originally created by @lastphoenx on GitHub (Nov 18, 2023).
Original GitHub issue: https://github.com/tzapu/WiFiManager/issues/1678

Basic Infos

Hardware

WiFimanager Branch/Release: Master 2.016-rc.2

Esp8266/Esp32:

Hardware: ESP32CAM AI Thinker ESP32-Cam

Description

Problem description

it would be very useful to be able to do soemthing like this, after a networkscan:

WiFi.begin(ssid, password, Kanal, WiFi.BSSID(i))

Message:
As I found, that it often reconnects to first BSSID it has ever connectet, it tends to only reconnect to this BSSID.
with WiFi.begin(ssid, password, Kanal, WiFi.BSSID(i)) i can change that behavior easily, but I cant do that with Wifi.Manger as I dont have access to the password for example and as i dont wanna store it in my coding I use Wifi-Manger.

Originally created by @lastphoenx on GitHub (Nov 18, 2023). Original GitHub issue: https://github.com/tzapu/WiFiManager/issues/1678 ### Basic Infos #### Hardware WiFimanager Branch/Release: Master 2.016-rc.2 Esp8266/Esp32: Hardware: ESP32CAM AI Thinker ESP32-Cam ### Description Problem description it would be very useful to be able to do soemthing like this, after a networkscan: WiFi.begin(ssid, password, Kanal, WiFi.BSSID(i)) Message: As I found, that it often reconnects to first BSSID it has ever connectet, it tends to only reconnect to this BSSID. with WiFi.begin(ssid, password, Kanal, WiFi.BSSID(i)) i can change that behavior easily, but I cant do that with Wifi.Manger as I dont have access to the password for example and as i dont wanna store it in my coding I use Wifi-Manger.

kerem commented

2026-02-28 01:30:02 +03:00

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@tablatronix commented on GitHub (Nov 18, 2023):

This is based on the scan options esp does this because its faster but sucks for mesh. You can adjust this and you can also save bssid automatically.
I will find examples

@tablatronix commented on GitHub (Nov 18, 2023): This is based on the scan options esp does this because its faster but sucks for mesh. You can adjust this and you can also save bssid automatically. I will find examples

kerem commented

2026-02-28 01:30:02 +03:00

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@lastphoenx commented on GitHub (Nov 18, 2023):

@tablatronix
okay, I'd be really grateful for examples because I couldn't figure it out with custom parameters/add parameters.

@lastphoenx commented on GitHub (Nov 18, 2023): @tablatronix okay, I'd be really grateful for examples because I couldn't figure it out with custom parameters/add parameters.

kerem commented

2026-02-28 01:30:02 +03:00

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@tablatronix commented on GitHub (Nov 18, 2023):

  // Set ESP WIFI specifics 
  // WiFi.setScanMethod(WIFI_ALL_CHANNEL_SCAN); // wifi_scan_method_t scanMethod [WIFI_FAST_SCAN],WIFI_ALL_CHANNEL_SCAN
  // WiFi.setSortMethod(WIFI_CONNECT_AP_BY_SIGNAL); // wifi_sort_method_t sortMethod - [WIFI_CONNECT_AP_BY_SIGNAL],WIFI_CONNECT_AP_BY_SECURITY
  // WiFi.setMinSecurity(WIFI_AUTH_WPA2_PSK); [WIFI_AUTH_WPA2_PSK]

check the super example

I might add a UI toggle for this at some point

@tablatronix commented on GitHub (Nov 18, 2023): ``` // Set ESP WIFI specifics // WiFi.setScanMethod(WIFI_ALL_CHANNEL_SCAN); // wifi_scan_method_t scanMethod [WIFI_FAST_SCAN],WIFI_ALL_CHANNEL_SCAN // WiFi.setSortMethod(WIFI_CONNECT_AP_BY_SIGNAL); // wifi_sort_method_t sortMethod - [WIFI_CONNECT_AP_BY_SIGNAL],WIFI_CONNECT_AP_BY_SECURITY // WiFi.setMinSecurity(WIFI_AUTH_WPA2_PSK); [WIFI_AUTH_WPA2_PSK] ``` check the super example I might add a UI toggle for this at some point

kerem commented

2026-02-28 01:30:02 +03:00

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@lastphoenx commented on GitHub (Nov 18, 2023):

wow, looks brilliant. thx so much.
meanwhile I tried this:

`
#include <EEPROM.h>
#include <WiFi.h>

    // Definiere die Adresse im EEPROM, an der die BSSID gespeichert wird
    #define BSSID_EEPROM_ADDRESS 0
    #define BSSID_LENGTH 6
    
    void saveBSSID(uint8_t *bssid) {
      // Speichere die BSSID in EEPROM
      for (int i = 0; i < BSSID_LENGTH; ++i) {
        EEPROM.write(BSSID_EEPROM_ADDRESS + i, bssid[i]);
      }
      EEPROM.commit();
    }
    
    // Hier in deiner Funktion (scan oder wie auch immer du sie nennst)
    void scanForNetwork() {
      // Ermitteln, welches Netz mit der passenden SSID das beste Signal hat
      // Das Ergebnis des Scans ist automatisch immer nach vom stärksten zum schwächsten Signal sortiert
      for (int i5 = 0; i5 < n && String(ssid) != String(WiFi.SSID(i5)); ++i5);
    
      if (i5 < n) {
        uint8_t currentBSSID[BSSID_LENGTH];
        memcpy(currentBSSID, WiFi.BSSID(i5), BSSID_LENGTH);
    
        // Speichere die BSSID im EEPROM
        saveBSSID(currentBSSID);
    
        WiFi.disconnect();
        WiFi.mode(WIFI_STA);
        initwifimanager()
        WiFi.reconnect();
      }
    }

what do you think about that? to complicated?

@lastphoenx commented on GitHub (Nov 18, 2023): wow, looks brilliant. thx so much. meanwhile I tried this: ` #include <EEPROM.h> #include <WiFi.h> // Definiere die Adresse im EEPROM, an der die BSSID gespeichert wird #define BSSID_EEPROM_ADDRESS 0 #define BSSID_LENGTH 6 void saveBSSID(uint8_t *bssid) { // Speichere die BSSID in EEPROM for (int i = 0; i < BSSID_LENGTH; ++i) { EEPROM.write(BSSID_EEPROM_ADDRESS + i, bssid[i]); } EEPROM.commit(); } // Hier in deiner Funktion (scan oder wie auch immer du sie nennst) void scanForNetwork() { // Ermitteln, welches Netz mit der passenden SSID das beste Signal hat // Das Ergebnis des Scans ist automatisch immer nach vom stärksten zum schwächsten Signal sortiert for (int i5 = 0; i5 < n && String(ssid) != String(WiFi.SSID(i5)); ++i5); if (i5 < n) { uint8_t currentBSSID[BSSID_LENGTH]; memcpy(currentBSSID, WiFi.BSSID(i5), BSSID_LENGTH); // Speichere die BSSID im EEPROM saveBSSID(currentBSSID); WiFi.disconnect(); WiFi.mode(WIFI_STA); initwifimanager() WiFi.reconnect(); } } ` what do you think about that? to complicated?

kerem commented

2026-02-28 01:30:02 +03:00

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@tablatronix commented on GitHub (Nov 18, 2023):

Esp will save bssid for you. I did some work on this in #1342 I will revisit the status

@tablatronix commented on GitHub (Nov 18, 2023): Esp will save bssid for you. I did some work on this in #1342 I will revisit the status

kerem commented

2026-02-28 01:30:02 +03:00

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@lastphoenx commented on GitHub (Nov 18, 2023):

oh - I see. thx!

@lastphoenx commented on GitHub (Nov 18, 2023): oh - I see. thx!

kerem commented

2026-02-28 01:30:02 +03:00

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@lastphoenx commented on GitHub (Nov 18, 2023):

Esp will save bssid for you. I did some work on this in #1342 I will revisit the status

I tested it (your three Lines of code by putting it in first Place of My void Setup. Workshop Perfect. I Would like to say thank you a) for your Library and b) for your fast reply.

@lastphoenx commented on GitHub (Nov 18, 2023): > Esp will save bssid for you. I did some work on this in #1342 I will revisit the status I tested it (your three Lines of code by putting it in first Place of My void Setup. Workshop Perfect. I Would like to say thank you a) for your Library and b) for your fast reply.

kerem commented

2026-02-28 01:30:02 +03:00

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@tablatronix commented on GitHub (Nov 18, 2023):

WiFi.setScanMethod(WIFI_ALL_CHANNEL_SCAN);
This is the key, otherwise esp by default uses the FIRST AP not the strongest

They turned it to fast so battery low power devices connect much faster

@tablatronix commented on GitHub (Nov 18, 2023): `WiFi.setScanMethod(WIFI_ALL_CHANNEL_SCAN);` This is the key, otherwise esp by default uses the FIRST AP not the strongest They turned it to fast so battery low power devices connect much faster

kerem commented

2026-02-28 01:30:02 +03:00

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@lastphoenx commented on GitHub (Nov 18, 2023):

yes, thats true. knowing this, maybe even a wifiManager.setConnectTimeout(20000); would fix it? (not best practice though)

would still be nice to know how to pass a specific BSSID to wifi.mangers autoconect or add optional BSSID paramater so that someone could fill it (like: res=wm.autoConnect("AutoConnectAP", "password", "BSSID")`

@lastphoenx commented on GitHub (Nov 18, 2023): yes, thats true. knowing this, maybe even a ` wifiManager.setConnectTimeout(20000);` would fix it? (not best practice though) would still be nice to know how to pass a specific BSSID to wifi.mangers autoconect or add optional BSSID paramater so that someone could fill it (like: `res=wm.autoConnect("AutoConnectAP", "password", `"BSSID")`

kerem commented

2026-02-28 01:30:02 +03:00

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@tablatronix commented on GitHub (Nov 19, 2023):

yeah I thought I added this somewhere but I cant find it

@tablatronix commented on GitHub (Nov 19, 2023): yeah I thought I added this somewhere but I cant find it

kerem commented

2026-02-28 01:30:02 +03:00

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@lastphoenx commented on GitHub (Nov 19, 2023):

You told that so i searched it on here in different request, discussions but did Not find it.

@lastphoenx commented on GitHub (Nov 19, 2023): You told that so i searched it on here in different request, discussions but did Not find it.

kerem commented

2026-02-28 01:30:02 +03:00

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@lastphoenx commented on GitHub (Nov 19, 2023):

It is not consistent. sometimes now it gets the best rssi but not always. it seems as if I need to make a time out.
would something like this help: wm.setConnectTimeout(7) where would i place it ?

@lastphoenx commented on GitHub (Nov 19, 2023): It is not consistent. sometimes now it gets the best rssi but not always. it seems as if I need to make a time out. would something like this help: `wm.setConnectTimeout(7)` where would i place it ?

kerem commented

2026-02-28 01:30:02 +03:00

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@tablatronix commented on GitHub (Nov 19, 2023):

I dont think so, the begin() should be doing a scan every connect before, unless you have issues like ap not found or something

@tablatronix commented on GitHub (Nov 19, 2023): I dont think so, the begin() should be doing a scan every connect before, unless you have issues like ap not found or something

kerem commented

2026-02-28 01:30:02 +03:00

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@lastphoenx commented on GitHub (Nov 19, 2023):

thx, whatever, it would be great to pass a specifi bssid to wifimanger anyway.

@lastphoenx commented on GitHub (Nov 19, 2023): thx, whatever, it would be great to pass a specifi bssid to wifimanger anyway.

kerem commented

2026-02-28 01:30:02 +03:00

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@tablatronix commented on GitHub (Nov 19, 2023):

Yeah I will try to test this a bit, I have a mesh network, I also just updated the fastconnect feature branch to test that
Might be later this week

I might have made a branch that I never pushed, or maybe its a PR, I know I had basic set bssid as one, but maybe there was esp bugs and I abandoned it at the time

I even had it set to auto use bssid if you have AP grouping turned off

@tablatronix commented on GitHub (Nov 19, 2023): Yeah I will try to test this a bit, I have a mesh network, I also just updated the fastconnect feature branch to test that Might be later this week I might have made a branch that I never pushed, or maybe its a PR, I know I had basic set bssid as one, but maybe there was esp bugs and I abandoned it at the time I even had it set to auto use bssid if you have AP grouping turned off

kerem commented

2026-02-28 01:30:02 +03:00

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@lastphoenx commented on GitHub (Nov 19, 2023):

okay, gerat. let me know. I will help to test as i have a great mesh with 5 AP.

@lastphoenx commented on GitHub (Nov 19, 2023): okay, gerat. let me know. I will help to test as i have a great mesh with 5 AP.