[GH-ISSUE #1317] Android HotSpot does not show up in the WiFi Scans for ESP8266 #1130

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opened 2026-02-28 01:28:39 +03:00 by kerem · 3 comments
Owner

Originally created by @eskhisov on GitHub (Dec 10, 2021).
Original GitHub issue: https://github.com/tzapu/WiFiManager/issues/1317

Basic Infos

Hardware

WiFimanager Branch/Release: Master 2.0.5 Beta

Esp8266/Esp32: Esp8266

Hardware: ESP-12e, esp01, esp25
ESP8266EX Tensilica Xtensa
Core Version: 2.4.0, staging

Description

Scanning of WiFi SSID does not show my Android HotSpot, Samsung Galaxy J7 9282. It is set to 2.4Gh. I've attached a screen shot that shows that the laptop can see that hotspot just fine, but it is not on the list, after many refreshes.

Settings in IDE

Module: NodeMcu, Wemos D1
SuperFly Hackable ESP8266 Flight Controller
https://www.tindie.com/products/onehorse/superfly-hackable-esp8266-flight-controller/
Additional libraries:

Sketch

#BEGIN
#include "Wire.h"
#include <ezTime.h>
#include <ESP8266WiFi.h>
#include <DNSServer.h> //Local DNS Server used for redirecting all requests to the configuration portal
#include <ESP8266WebServer.h> //Local WebServer used to serve the configuration portal
#include <WiFiManager.h>

void setup() {
//Setup WiFi
  // We start by connecting to a WiFi network
  WiFiManager wifiManager;
  //first parameter is name of access point, second is the password
  //DEBUG!! TAKE OUT LATER!!!!
  wifiManager.resetSettings();
  wifiManager.autoConnect("***********", "*******");

  Serial.println("");
  Serial.println("WiFi connected");
  Serial.print("IP address: ");
  Serial.println(WiFi.localIP());
}

void loop() {

}
#END

Debug Messages

*wm:[1] resetSettings
state: 5 -> 0 (0)
rm 0
del if0
usl
mode : null
*wm:[1] SETTINGS ERASED
*wm:[1] AutoConnect
*wm:[1] No Credentials are Saved, skipping connect
*wm:[2] Starting Config Portal
*wm:[2] AccessPoint set password is VALID
*wm:[2] Disabling STA
*wm:[2] Enabling AP
*wm:[1] StartAP with SSID: KS-sensor-20200623-04
mode : softAP(5e:cf:7f:8b:24:25)
add if1
dhcp server start:(ip:192.168.4.1,mask:255.255.255.0,gw:192.168.4.1)
bcn 100
*wm:[1] AP IP address: 192.168.4.1
*wm:[1] Starting Web Portal
*wm:[2] HTTP server started
*wm:[2] Config Portal Running, blocking, waiting for clients...
add 1
aid 1
station: 9c:b6:d0:6c:9b:ed join, AID = 1
*wm:[2] <- Request redirected to captive portal
*wm:[2] <- Request redirected to captive portal
*wm:[2] <- Request redirected to captive portal
*wm:[2] <- HTTP Root
*wm:[2] NUM CLIENTS: 1
*wm:[2] <- HTTP Wifi
*wm:[2] WiFi Scan SYNC started
mode : sta(5c:cf:7f:8b:24:25) + softAP(5e:cf:7f:8b:24:25)
add if0
scandone
*wm:[2] WiFi Scan completed in 2210 ms
*wm:[1] 12 networks found
*wm:[2] DUP AP: NETGEAR29
*wm:[2] AP: -45 NETGEAR29
*wm:[2] AP: -83 CenturyLink6487
*wm:[2] AP: -85 araknis_initial
*wm:[2] AP: -86 PinotAnyone
*wm:[2] AP: -87 PlayFi2Device04A1DB
*wm:[2] AP: -88 APRILAIRE88105043F3
*wm:[2] AP: -90 CenturyLink3929-PRO
*wm:[2] AP: -91 NETGEAR63
*wm:[2] AP: -92 Jager822-WAP
*wm:[2] AP: -93 APRILAIRE8810504A16
*wm:[2] AP: -93 CenturyLink7592
*wm:[2] <- Request redirected to captive portal
*wm:[2] <- Request redirected to captive portal
*wm:[2] NUM CLIENTS: 1
*wm:[2] <- Request redirected to captive portal
*wm:[2] <- Request redirected to captive portal
*wm:[2] NUM CLIENTS: 1
*wm:[2] <- HTTP Wifi
*wm:[2] WiFi Scan SYNC started
scandone
*wm:[2] WiFi Scan completed in 2205 ms
*wm:[1] 11 networks found
*wm:[2] AP: -48 NETGEAR29
*wm:[2] AP: -73 PinotAnyone
*wm:[2] AP: -80 CenturyLink6487
*wm:[2] AP: -83 araknis_initial
*wm:[2] AP: -86 NETGEAR63
*wm:[2] AP: -87 PlayFi2Device04A1DB
*wm:[2] AP: -87 CenturyLink7592
*wm:[2] AP: -89 APRILAIRE88105043F3
*wm:[2] AP: -91 CenturyLink3929-PRO
*wm:[2] AP: -92 CenturyLink1588
*wm:[2] AP: -93 CenturyLink4388
*wm:[2] <- Request redirected to captive portal
*wm:[2] <- Request redirected to captive portal
*wm:[2] NUM CLIENTS: 1
*wm:[2] <- Request redirected to captive portal
*wm:[2] <- Request redirected to captive portal
*wm:[2] NUM CLIENTS: 1
*wm:[2] <- Request redirected to captive portal
*wm:[2] <- Request redirected to captive portal
*wm:[2] <- HTTP Wifi
*wm:[2] WiFi Scan SYNC started
scandone
*wm:[2] WiFi Scan completed in 2205 ms
*wm:[1] 7 networks found
*wm:[2] AP: -46 NETGEAR29
*wm:[2] AP: -72 PinotAnyone
*wm:[2] AP: -79 CenturyLink6487
*wm:[2] AP: -81 araknis_initial
*wm:[2] AP: -86 NETGEAR63
*wm:[2] AP: -88 CenturyLink7592
*wm:[2] AP: -89 APRILAIRE88105043F3
*wm:[2] NUM CLIENTS: 1
*wm:[2] <- HTTP Wifi
*wm:[2] WiFi Scan SYNC started
scandone
*wm:[2] WiFi Scan completed in 2206 ms
*wm:[1] 10 networks found
*wm:[2] AP: -46 NETGEAR29
*wm:[2] AP: -73 PinotAnyone
*wm:[2] AP: -80 CenturyLink6487
*wm:[2] AP: -81 araknis_initial
*wm:[2] AP: -86 NETGEAR63
*wm:[2] AP: -86 PlayFi2Device04A1DB
*wm:[2] AP: -89 CenturyLink9720
*wm:[2] AP: -89 CenturyLink7592
*wm:[2] AP: -93 CenturyLink3929-PRO
*wm:[2] AP: -94 CenturyLink1588
*wm:[2] <- Request redirected to captive portal
*wm:[2] <- Request redirected to captive portal
*wm:[2] <- HTTP Wifi
*wm:[2] WiFi Scan SYNC started
scandone
*wm:[2] WiFi Scan completed in 2206 ms
*wm:[1] 11 networks found
*wm:[2] AP: -46 NETGEAR29
*wm:[2] AP: -72 PinotAnyone
*wm:[2] AP: -79 CenturyLink6487
*wm:[2] AP: -82 araknis_initial
*wm:[2] AP: -88 Dexter
*wm:[2] AP: -89 NETGEAR63
*wm:[2] AP: -90 APRILAIRE88105043F3
*wm:[2] AP: -90 CenturyLink7592
*wm:[2] AP: -92 CenturyLink1588
*wm:[2] AP: -92 CenturyLink4388
*wm:[2] AP: -95 CenturyLink3929-PRO
*wm:[2] NUM CLIENTS: 1
*wm:[2] <- HTTP Wifi
*wm:[2] WiFi Scan SYNC started
scandone
*wm:[2] WiFi Scan completed in 2206 ms
*wm:[1] 13 networks found
*wm:[2] AP: -47 NETGEAR29
*wm:[2] AP: -73 PinotAnyone
*wm:[2] AP: -80 CenturyLink6487
*wm:[2] AP: -82 araknis_initial
*wm:[2] AP: -85 NETGEAR63
*wm:[2] AP: -85 PlayFi2Device04A1DB
*wm:[2] AP: -88 CenturyLink7592
*wm:[2] AP: -90 CenturyLink4388
*wm:[2] AP: -91 APRILAIRE88105043F3
*wm:[2] AP: -92 MsM-miss-WAP
*wm:[2] AP: -93 CenturyLink1588
*wm:[2] AP: -93 Jager822-WAP
*wm:[2] AP: -94 CenturyLink3929-PRO
*wm:[2] <- Request redirected to captive portal
*wm:[2] <- Request redirected to captive portal
*wm:[2] NUM CLIENTS: 1
*wm:[2] <- Request redirected to captive portal
*wm:[2] <- Request redirected to captive portal
*wm:[2] NUM CLIENTS: 1
*wm:[2] <- HTTP Wifi
*wm:[2] WiFi Scan SYNC started
scandone
*wm:[2] WiFi Scan completed in 2208 ms
*wm:[1] 14 networks found
*wm:[2] AP: -46 NETGEAR29
*wm:[2] AP: -70 PinotAnyone
*wm:[2] AP: -79 araknis_initial
*wm:[2] AP: -81 CenturyLink6487
*wm:[2] AP: -86 PlayFi2Device04A1DB
*wm:[2] AP: -86 NETGEAR63
*wm:[2] AP: -87 CenturyLink7592
*wm:[2] AP: -88 CenturyLink9720
*wm:[2] AP: -90 SnamComm-2G
*wm:[2] AP: -90 Welcome Guest
*wm:[2] AP: -91 CenturyLink1588
*wm:[2] AP: -91 CenturyLink3929-PRO
*wm:[2] AP: -93 Jager822-WAP
*wm:[2] AP: -95 APRILAIRE8810504A16
*wm:[2] <- Request redirected to captive portal
*wm:[2] <- Request redirected to captive portal
*wm:[2] NUM CLIENTS: 1
*wm:[2] <- HTTP Wifi
*wm:[2] WiFi Scan SYNC started
scandone
*wm:[2] WiFi Scan completed in 2206 ms
*wm:[1] 13 networks found
*wm:[2] DUP AP: NETGEAR29
*wm:[2] AP: -47 NETGEAR29
*wm:[2] AP: -71 PinotAnyone
*wm:[2] AP: -80 NETGEAR63
*wm:[2] AP: -80 CenturyLink6487
*wm:[2] AP: -81 araknis_initial
*wm:[2] AP: -88 PlayFi2Device04A1DB
*wm:[2] AP: -88 Adhikari
*wm:[2] AP: -89 CenturyLink7592
*wm:[2] AP: -90 CenturyLink4388
*wm:[2] AP: -90 CenturyLink1588
*wm:[2] AP: -90 CenturyLink3929-PRO
*wm:[2] AP: -91 SnamComm-2G
*wm:[2] <- Request redirected to captive portal
*wm:[2] <- Request redirected to captive portal
*wm:[2] NUM CLIENTS: 1
*wm:[2] <- Request redirected to captive portal
*wm:[2] <- Request redirected to captive portal
*wm:[2] NUM CLIENTS: 1
*wm:[2] <- Request redirected to captive portal
*wm:[2] <- Request redirected to captive portal
*wm:[2] NUM CLIENTS: 1
*wm:[2] <- Request redirected to captive portal
*wm:[2] <- Request redirected to captive portal
*wm:[2] NUM CLIENTS: 1
*wm:[2] <- Request redirected to captive portal
*wm:[2] <- Request redirected to captive portal
*wm:[2] NUM CLIENTS: 1

missing hotspot

Originally created by @eskhisov on GitHub (Dec 10, 2021). Original GitHub issue: https://github.com/tzapu/WiFiManager/issues/1317 ### Basic Infos #### Hardware WiFimanager Branch/Release: Master 2.0.5 Beta Esp8266/Esp32: Esp8266 Hardware: ESP-12e, esp01, esp25 ESP8266EX Tensilica Xtensa Core Version: 2.4.0, staging ### Description Scanning of WiFi SSID does not show my Android HotSpot, Samsung Galaxy J7 9282. It is set to 2.4Gh. I've attached a screen shot that shows that the laptop can see that hotspot just fine, but it is not on the list, after many refreshes. ### Settings in IDE Module: NodeMcu, Wemos D1 SuperFly Hackable ESP8266 Flight Controller https://www.tindie.com/products/onehorse/superfly-hackable-esp8266-flight-controller/ Additional libraries: ### Sketch ```cpp #BEGIN #include "Wire.h" #include <ezTime.h> #include <ESP8266WiFi.h> #include <DNSServer.h> //Local DNS Server used for redirecting all requests to the configuration portal #include <ESP8266WebServer.h> //Local WebServer used to serve the configuration portal #include <WiFiManager.h> void setup() { //Setup WiFi // We start by connecting to a WiFi network WiFiManager wifiManager; //first parameter is name of access point, second is the password //DEBUG!! TAKE OUT LATER!!!! wifiManager.resetSettings(); wifiManager.autoConnect("***********", "*******"); Serial.println(""); Serial.println("WiFi connected"); Serial.print("IP address: "); Serial.println(WiFi.localIP()); } void loop() { } #END ``` ### Debug Messages *wm:[1] resetSettings state: 5 -> 0 (0) rm 0 del if0 usl mode : null *wm:[1] SETTINGS ERASED *wm:[1] AutoConnect *wm:[1] No Credentials are Saved, skipping connect *wm:[2] Starting Config Portal *wm:[2] AccessPoint set password is VALID *wm:[2] Disabling STA *wm:[2] Enabling AP *wm:[1] StartAP with SSID: KS-sensor-20200623-04 mode : softAP(5e:cf:7f:8b:24:25) add if1 dhcp server start:(ip:192.168.4.1,mask:255.255.255.0,gw:192.168.4.1) bcn 100 *wm:[1] AP IP address: 192.168.4.1 *wm:[1] Starting Web Portal *wm:[2] HTTP server started *wm:[2] Config Portal Running, blocking, waiting for clients... add 1 aid 1 station: 9c:b6:d0:6c:9b:ed join, AID = 1 *wm:[2] <- Request redirected to captive portal *wm:[2] <- Request redirected to captive portal *wm:[2] <- Request redirected to captive portal *wm:[2] <- HTTP Root *wm:[2] NUM CLIENTS: 1 *wm:[2] <- HTTP Wifi *wm:[2] WiFi Scan SYNC started mode : sta(5c:cf:7f:8b:24:25) + softAP(5e:cf:7f:8b:24:25) add if0 scandone *wm:[2] WiFi Scan completed in 2210 ms *wm:[1] 12 networks found *wm:[2] DUP AP: NETGEAR29 *wm:[2] AP: -45 NETGEAR29 *wm:[2] AP: -83 CenturyLink6487 *wm:[2] AP: -85 araknis_initial *wm:[2] AP: -86 PinotAnyone *wm:[2] AP: -87 PlayFi2Device04A1DB *wm:[2] AP: -88 APRILAIRE88105043F3 *wm:[2] AP: -90 CenturyLink3929-PRO *wm:[2] AP: -91 NETGEAR63 *wm:[2] AP: -92 Jager822-WAP *wm:[2] AP: -93 APRILAIRE8810504A16 *wm:[2] AP: -93 CenturyLink7592 *wm:[2] <- Request redirected to captive portal *wm:[2] <- Request redirected to captive portal *wm:[2] NUM CLIENTS: 1 *wm:[2] <- Request redirected to captive portal *wm:[2] <- Request redirected to captive portal *wm:[2] NUM CLIENTS: 1 *wm:[2] <- HTTP Wifi *wm:[2] WiFi Scan SYNC started scandone *wm:[2] WiFi Scan completed in 2205 ms *wm:[1] 11 networks found *wm:[2] AP: -48 NETGEAR29 *wm:[2] AP: -73 PinotAnyone *wm:[2] AP: -80 CenturyLink6487 *wm:[2] AP: -83 araknis_initial *wm:[2] AP: -86 NETGEAR63 *wm:[2] AP: -87 PlayFi2Device04A1DB *wm:[2] AP: -87 CenturyLink7592 *wm:[2] AP: -89 APRILAIRE88105043F3 *wm:[2] AP: -91 CenturyLink3929-PRO *wm:[2] AP: -92 CenturyLink1588 *wm:[2] AP: -93 CenturyLink4388 *wm:[2] <- Request redirected to captive portal *wm:[2] <- Request redirected to captive portal *wm:[2] NUM CLIENTS: 1 *wm:[2] <- Request redirected to captive portal *wm:[2] <- Request redirected to captive portal *wm:[2] NUM CLIENTS: 1 *wm:[2] <- Request redirected to captive portal *wm:[2] <- Request redirected to captive portal *wm:[2] <- HTTP Wifi *wm:[2] WiFi Scan SYNC started scandone *wm:[2] WiFi Scan completed in 2205 ms *wm:[1] 7 networks found *wm:[2] AP: -46 NETGEAR29 *wm:[2] AP: -72 PinotAnyone *wm:[2] AP: -79 CenturyLink6487 *wm:[2] AP: -81 araknis_initial *wm:[2] AP: -86 NETGEAR63 *wm:[2] AP: -88 CenturyLink7592 *wm:[2] AP: -89 APRILAIRE88105043F3 *wm:[2] NUM CLIENTS: 1 *wm:[2] <- HTTP Wifi *wm:[2] WiFi Scan SYNC started scandone *wm:[2] WiFi Scan completed in 2206 ms *wm:[1] 10 networks found *wm:[2] AP: -46 NETGEAR29 *wm:[2] AP: -73 PinotAnyone *wm:[2] AP: -80 CenturyLink6487 *wm:[2] AP: -81 araknis_initial *wm:[2] AP: -86 NETGEAR63 *wm:[2] AP: -86 PlayFi2Device04A1DB *wm:[2] AP: -89 CenturyLink9720 *wm:[2] AP: -89 CenturyLink7592 *wm:[2] AP: -93 CenturyLink3929-PRO *wm:[2] AP: -94 CenturyLink1588 *wm:[2] <- Request redirected to captive portal *wm:[2] <- Request redirected to captive portal *wm:[2] <- HTTP Wifi *wm:[2] WiFi Scan SYNC started scandone *wm:[2] WiFi Scan completed in 2206 ms *wm:[1] 11 networks found *wm:[2] AP: -46 NETGEAR29 *wm:[2] AP: -72 PinotAnyone *wm:[2] AP: -79 CenturyLink6487 *wm:[2] AP: -82 araknis_initial *wm:[2] AP: -88 Dexter *wm:[2] AP: -89 NETGEAR63 *wm:[2] AP: -90 APRILAIRE88105043F3 *wm:[2] AP: -90 CenturyLink7592 *wm:[2] AP: -92 CenturyLink1588 *wm:[2] AP: -92 CenturyLink4388 *wm:[2] AP: -95 CenturyLink3929-PRO *wm:[2] NUM CLIENTS: 1 *wm:[2] <- HTTP Wifi *wm:[2] WiFi Scan SYNC started scandone *wm:[2] WiFi Scan completed in 2206 ms *wm:[1] 13 networks found *wm:[2] AP: -47 NETGEAR29 *wm:[2] AP: -73 PinotAnyone *wm:[2] AP: -80 CenturyLink6487 *wm:[2] AP: -82 araknis_initial *wm:[2] AP: -85 NETGEAR63 *wm:[2] AP: -85 PlayFi2Device04A1DB *wm:[2] AP: -88 CenturyLink7592 *wm:[2] AP: -90 CenturyLink4388 *wm:[2] AP: -91 APRILAIRE88105043F3 *wm:[2] AP: -92 MsM-miss-WAP *wm:[2] AP: -93 CenturyLink1588 *wm:[2] AP: -93 Jager822-WAP *wm:[2] AP: -94 CenturyLink3929-PRO *wm:[2] <- Request redirected to captive portal *wm:[2] <- Request redirected to captive portal *wm:[2] NUM CLIENTS: 1 *wm:[2] <- Request redirected to captive portal *wm:[2] <- Request redirected to captive portal *wm:[2] NUM CLIENTS: 1 *wm:[2] <- HTTP Wifi *wm:[2] WiFi Scan SYNC started scandone *wm:[2] WiFi Scan completed in 2208 ms *wm:[1] 14 networks found *wm:[2] AP: -46 NETGEAR29 *wm:[2] AP: -70 PinotAnyone *wm:[2] AP: -79 araknis_initial *wm:[2] AP: -81 CenturyLink6487 *wm:[2] AP: -86 PlayFi2Device04A1DB *wm:[2] AP: -86 NETGEAR63 *wm:[2] AP: -87 CenturyLink7592 *wm:[2] AP: -88 CenturyLink9720 *wm:[2] AP: -90 SnamComm-2G *wm:[2] AP: -90 Welcome Guest *wm:[2] AP: -91 CenturyLink1588 *wm:[2] AP: -91 CenturyLink3929-PRO *wm:[2] AP: -93 Jager822-WAP *wm:[2] AP: -95 APRILAIRE8810504A16 *wm:[2] <- Request redirected to captive portal *wm:[2] <- Request redirected to captive portal *wm:[2] NUM CLIENTS: 1 *wm:[2] <- HTTP Wifi *wm:[2] WiFi Scan SYNC started scandone *wm:[2] WiFi Scan completed in 2206 ms *wm:[1] 13 networks found *wm:[2] DUP AP: NETGEAR29 *wm:[2] AP: -47 NETGEAR29 *wm:[2] AP: -71 PinotAnyone *wm:[2] AP: -80 NETGEAR63 *wm:[2] AP: -80 CenturyLink6487 *wm:[2] AP: -81 araknis_initial *wm:[2] AP: -88 PlayFi2Device04A1DB *wm:[2] AP: -88 Adhikari *wm:[2] AP: -89 CenturyLink7592 *wm:[2] AP: -90 CenturyLink4388 *wm:[2] AP: -90 CenturyLink1588 *wm:[2] AP: -90 CenturyLink3929-PRO *wm:[2] AP: -91 SnamComm-2G *wm:[2] <- Request redirected to captive portal *wm:[2] <- Request redirected to captive portal *wm:[2] NUM CLIENTS: 1 *wm:[2] <- Request redirected to captive portal *wm:[2] <- Request redirected to captive portal *wm:[2] NUM CLIENTS: 1 *wm:[2] <- Request redirected to captive portal *wm:[2] <- Request redirected to captive portal *wm:[2] NUM CLIENTS: 1 *wm:[2] <- Request redirected to captive portal *wm:[2] <- Request redirected to captive portal *wm:[2] NUM CLIENTS: 1 *wm:[2] <- Request redirected to captive portal *wm:[2] <- Request redirected to captive portal *wm:[2] NUM CLIENTS: 1 ![missing hotspot](https://user-images.githubusercontent.com/4778589/145501664-50f36f92-d56e-4e76-bb98-a59f8f6f0d5f.png)
Author
Owner

@eskhisov commented on GitHub (Dec 12, 2021):

Never mind, it worked. The key was for HotSpot not to be configured with WiFi sharing of 5Gh WiFi connection.

<!-- gh-comment-id:991989986 --> @eskhisov commented on GitHub (Dec 12, 2021): Never mind, it worked. The key was for HotSpot not to be configured with WiFi sharing of 5Gh WiFi connection.
Author
Owner

@tablatronix commented on GitHub (Dec 13, 2021):

Adhoc and hotspots can be flaky, sometimes I cant use my ios one also , other times its super stable, might be an sdk thing or congestion no idea

<!-- gh-comment-id:992713737 --> @tablatronix commented on GitHub (Dec 13, 2021): Adhoc and hotspots can be flaky, sometimes I cant use my ios one also , other times its super stable, might be an sdk thing or congestion no idea
Author
Owner

@JeffZuckerberg commented on GitHub (Mar 13, 2022):

I have the same problem. It works fine many times, but now the wifimanager didn't display my android hot-spot anymore

<!-- gh-comment-id:1066194449 --> @JeffZuckerberg commented on GitHub (Mar 13, 2022): I have the same problem. It works fine many times, but now the wifimanager didn't display my android hot-spot anymore
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