Questions tagged [wifi]

Questions on the use of Wi-Fi (local area wireless computer networking technology). This tag is also used for generic "wlan" questions since they are commonly synonymous. Note shopping questions are off-topic.

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27 views

Setting up an AP from C code rock solid

I have to develop a program for RBPi4 with latest Raspberry OS. I'm coding in C because that's what i know for now. After startup the device's first task is to create a WLAN with predefined ssid, ...
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336 views

Android cannot connect to Pi's wlan

I'm running a Node server on port :3000 and want to access it from other devices using Pi's wlan0 address. wlan0: 169.254.36.22 Accessing from Macbook works Accessing from iPhone works Accessing ...
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22 views

RPI Pico: How to use ESP8266 (ESP-01S) as wifi modem?

I would like to use the Raspberry PI Pico to monitor exchange rates for crytpo currencies and inform me via SMS (using a SIM800l module) when certain prices are exceeded or fallen short of. I ...
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58 views

Wireless Transparent Proxy Troubleshooting

I'm someone who has very little technical experience but became interested in the idea of a transparent Tor proxy. I'm well aware that this isn't a secure implementation but I thought I could learn a ...
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7 views

How to get query identifier for p2p_serv_disc_cancel_req command?

I have read [https://web.mit.edu/freebsd/head/contrib/wpa/wpa_supplicant/README-P2P] document but can not figure out what is the exact use of command p2p_serv_disc_cancel_req <query identifier> ...
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13 views

How to Control Halonix WiFi smart bulb using raspberry pi

I bought a smart bulb off amazon called Halonix WiFi bulb https://www.amazon.in/Halonix-Compatible-Amazon-Google-Assistant/dp/B07NN6SZQM?ref_=ast_sto_dp which is alexa compatible and has its own app ...
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1answer
29 views

Why won't Buster Lite boot to anything other than emergency mode on wired Pi Zero when a file system check is done?

I'm running a wired (no onboard bluetooth or wifi) Pi Zero with Buster Lite with latest update/upgrade. When I touch /forcefsck, or put an equivalent statement in /boot/cmdline.txt, it ALWAYS fails ...
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22 views

Pi 4 (8GB) loses wifi when plugging large capacity USB

My RPI 4 (8 GB) boots fine, wifi stable and all seems to work with no issues. I purchased a few 256 GB Samsung USB 3.1 sticks to extend storage. But whenever I plug in one or two (as wanted), wifi won'...
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1answer
119 views

Intercepting HTTP request to fool Android into thinking WiFi network has internet

I have a product on a Raspberry Pi, using Raspbian where people connect to their Pi using WiFi served from the Pi, and then access the software via the web browser on their device (smartphone, tablet, ...
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14 views

What configuration i have to do in wpa_supplicant.config for allowing only two client

P2P connection is created successfully using the following link. Connect Android smartphone with Wi-Fi Direct to a Raspberry Pi Now I have to allow only 2 clients to connect with the P2P group. If 3rd ...
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1answer
86 views

Wifi connects but no internet access on Raspberry Pi 4

I can connect my Raspberry Pi 4 to my wifi, but I can't seem to access the internet. I can ping machines on the network, and I can ping (and even VNC into) the Pi from network machines. However, I can'...
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2answers
448 views

How to install Edimax EW-7811UN V2 on Pi 3 Model B?

I'm expecting wlan1 (wlan0 is the onboard wifi), however ifconfig doesn't show any new wifi adapter lsusb Bus 001 Device 009: ID 7392:b811 Edimax Technology Co., Ltd dmesg [ 2230.446927] usb 1-1.3: ...
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72 views

Raspberry Pi Zero W can't connect to wifi

I have been trying to setup a raspberry pi 0w to connect to my access point but I can't get it to connect. The first thing I did was to enable USB ethernet and make the ssh file so I can connect to it ...
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14 views

My raspberry PI zero wpa_Supplicant is not connecting to the internet [closed]

I am following the instructions on installing the TILT™ PI V2 BUSTER JAN21 (RASPBERRY PI SD CARD IMAGE DOWNLOAD). However, after going through all the instructions my pi zero w will not connect to my ...
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1answer
14k views

wlan0: link is not ready

I have had my pi3 for a while now all of a sudden I start to get IPv6: ADDRCONF (NETDEV_UP): wlan0: link is not ready IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready and stalls there ...
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1answer
22 views

Raspberry Pi 4 network speed drop

I configured my Raspberry Pi 4 to be a wireless and wired router that I can also use in combination with a D-Link DWM-222 USB modem. The problem is that when I connect the Ethernet cable (I am using a ...
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486 views

Raspberry Pi 3 model B wifi monitor mode

Q. Has anyone managed to configure a raspberry-pi 3 b for monitor-mode? I have an external (Edimax) WiFi USB dongle also, which works with my PC in monitor mode but does not work with the raspberry ...
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21 views

Sharing a headless Raspberry's IP to an Android host

I am doing a project where a Raspberry pi zero collects some data from a sensor and displays it through a self hosted web server. Now,the usual way you access a webpage in a raspberry is to just type ...
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16 views

error from dbus, no wifi after reboot

I corrupted the ssd, so until I get this error again (hopefully I won't, but I probably will because it already happened 2 times) I can't do anything. I got a messagebox with this error when booting: ...
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21 views

USB OTG and USB Hub on PI Zero

I would like to use the Pi Zero with a few USB devices (WiFi, TV Tuner, external HDD) plugged into it while at the same time using OTG USB CDC drivers to make the Pi Zero appear as an Ethernet ...
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1answer
102 views

Why Pi 4 wifi speed is locked to 54.0 Mbit/s?

I have my route at AC channel 36 with 80MHz bandwidth. However, RPi 4 is always locked to 54.0 Mbit/s ? It's located right next to the router and the practical speed is about 7Mbyte/s. Is this ...
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1answer
134 views

Transfer PSTN call to mobile over Wi-Fi?

I'm a newbie to Raspberry pi and I'm currently working on project and what I need is ,real time transfer analog call to mobile application over WiFi. So can someone suggest a way to accomplish my task?...
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525 views

iw scan of a single channel appears to be broken

If you do sudo iwlist wlan0 scan freq 2412 or sudo iw wlan0 scan freq 2412 you will get a full scan and not a channel scan. I think there maybe a bug in the RPi implementation of iw. Has anyone had ...
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1answer
821 views

Raspberry Pi Wi-Fi AP problem: no network and internet access on the Pi, though got them on Wi-Fi

I decided to use my Pi as a WiFi-AP, and followed the manual here: https://thepi.io/how-to-use-your-raspberry-pi-as-a-wireless-access-point/amp/ I did not setup a DHCP server though, because my ...
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1answer
108 views

Remove device history wireless hotspot

I have been using Raspberry pi 3B as a wireless hotspot following this How to use your Raspberry Pi as a wireless access point. I think there is a limit to a number of devices that can be connected to ...
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1answer
68 views

Access Vigor 130 modem on eth0 AND WiFi at the same time

I will confess to being an absolute Pi virgin so be kind. I have a Draytek Vigor 130 configured in bridge mode, which then goes to an unmanaged switch, and on to a Google WiFi router. To access the ...
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1answer
504 views

Raspberry pi Proxy ARP wifi bridge + extra ethernet adapter

Going through this thread: proxy ARP WiFi bridge Raspberry Ingo´s solution is working fine for me but I´m looking for an extra... With this WiFi bridge I want to use an add USB-Ethernet adapter (...
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15 views

Pi 4 Ubuntu hotspot

I tried installing dnsmasq and hostapd to create a hotspot with DHCP, and have a WPA supplicant file with my WiFi settings and my dnsmasq settings with a random IP number I chose for my hotspot LAN ...
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1answer
7k views

Bridge Ethernet and wifi on Raspberry Pi 3 to reach ethernet device

I have a raspberry Pi 3 that is connected to a measurement device through the Ethernet port and that provides a WiFi network using dnsmasq. As things are now, I can send command to the device from my ...
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1answer
38 views

Constant dhcpcd errors: eth0: authentication failed from IP address: No such file or directory

My syslog is full of these errors: Feb 14 13:24:50 raspberrypi dhcpcd[564]: eth0: authentication failed from aa11::1111:aaaa:aa11:a1a1: No such file or directory Feb 14 13:25:54 raspberrypi dhcpcd[564]...
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1answer
41 views

hostapd failing to respond to DHCP discover nl80211: Frame command failed:

I'm trying to set up a AP by using hostapd and I was unable to even after following the tutorial notes step by step: After running hostapd with dnsmasq The AP gets advertised on the air, but ...
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22 views

Plug&Play wifi dongle for Raspberry Pi 4 Model B

I am looking for Plug&Play wifi dongle for Raspberry Pi 4 Model B. Looking for any feedback and your experiences. Thank you in advance Damian
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1answer
85 views

Install drivers for RTL8812au for raspibian kernel 5.4.79-v71+ / RPI 4

I have been trying for some days now to get an Alfa AWUS036ACS USB adapter installed on an RPI running Buster. This adapter uses the RTL8811au chipset but everyone seems to use the rtl8812au drivers. ...
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1answer
2k views

WIFI USB adapter not detected RPi 3b after reboot

I'm using builtin WIFI adapter 802.11n Wireless LAN. ifup wlan0 shows: wpa_supplicant: /sbin/wpa_supplicant daemon failed to start run-parts: /etc/network/if-pre-up.d/wpasupplicant exited with ...
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1answer
961 views

Two raspberry pi with wifi communication and pc with wifi or ethernet network

I want to setup a network between two raspberry Pi and a pc. The Pi's should use Wi-Fi to communicate with each other, and for the pc it doesn't matter if it's with an ethernet cable or over Wi-Fi. I ...
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1answer
114 views

PI 3B wifi interface fail

My PI-3B is flashed with Ubuntu 16.04 with wireless-tools and wpa_supplicant also installed. My issue is I can't get wlan0 to be recognised by the system either dynamically (DHCP) or statically. I ...
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1answer
80 views

RPI 2b wifi doesn't work

I get a RT5370 wireless adapter for my RPi 2b to connect the Internet. I check that my adapter works good (I can use it scan the network and truly see the wifi that I want to use), and when I run sudo ...
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1answer
338 views

RPI4B Ubnutu Server 20.10 wifi setup

I recently installed Ubuntu Server 20.10 on my RPI 4B and cannot get wifi to work. I followed the instructions here, here, and here. When I attempt to setup wifi via wpa_supplicant (the last link) ...
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1answer
154 views

Setting up the Raspberry Pi for the second time and WiFi detection issues

I am a beginner. When I bought my Raspberry Pi 3B a week ago, I was told that they had already applied a set-up. I didn't know what it meant and I followed a tutorial to set-up the Pi for the second ...
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1answer
17 views

Setting up octo print and my Raspberry Pi 3 B+ won't show up on on angry IP scanner. How can I find its IP?

So I recently ordered a Raspberry Pi 3 B+ off amazon from RS Components and I wan to set up octo print with it, but the IP won't show up on angry IP scanner. I'm not sure what to do since I can't find ...
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3answers
334 views

Pi does not pick up my Wi-Fi but sees neighbours Wi-Fi

My brand new Pi 2 does not pick up my Wi-Fi but it sees all the Wi-Fi nearby, i.e. the neighbors. I am using the official Pi dongle and have tried all 4 USB ports. I have tried to find answers to no ...
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2answers
120 views

Failing during configuration of “Access point as WiFi router/repeater with additional WiFi-dongle” [closed]

I am newbie in this area and I try to follow the instructions of @Ingo from here since days Link I have Raspberry 4B 2GB with on board wifi and additional WIFI dongle "TP-Link TL-WN823N" I ...
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0answers
33 views

Pi Zero W as a WiFi Access Point - WiFi Dropping Out every minute or so

I have setup a Pi Zero v 1.1 & Camera with latest Raspian Buster Lite to replace an old Drone Camera which has failed. I have it running as a router using this url and streaming the video fine ...
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1answer
26 views

Can't get TP-Link TL-WN823N running on RPI4B

WIfi dongle TP-Link TL-WN823N will be not automatically recognized on RPI4B. I also can't find any matching drivers to install it manually. How can I fix it to get it running? Please help, I am a ...
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1answer
233 views

Ethernet & WiFi Pi3b+

I have a raspberry pi 3b+ which I want to connect to two seperate networks. I have an existing ethernet connection which works fine, and i am able to SSH/VNC to the pi over this network. I have ...
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1answer
30 views

Raspberry Pi & Ubuntu fileshare through etho, internet through wlan0

I have a RaspberryPi set-up through wifi to work as a samba server (external harddrive). It works great and all my devices can connect to it. I also have an old laptop I'm setting up as an Ubuntu Kodi ...
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1answer
31 views

Using a Raspberry Pi as an Wifi access point redirect to a HTML website stored on a Harddrive connected via USB [closed]

I would like to code a very simple web site in HTML / CSS / Js that is stored on a Hard Disk ( cause it’s heavy with some media video) connected to my raspberry pi 4 and give local access to this ...
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1answer
34 views

Is there a captive portal / setup portal to setup WiFi on the Raspi? Like on some WiFi range extenders

I am developing a project and for testing, I want to send some raspis to friends but I don't want to know all their WiFi credentials in advance. Is there something so the Raspi will act as an access ...
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1answer
94 views

How to invoke the existing persistent p2p Go on restart of device (to create auto connect)

I am able to connect successfully with the android device with the following wpa_supplicant.conf ctrl_interface=DIR=/var/run/wpa_supplicant GROUP=root update_config=1 device_name=DIRECT-Pi ...
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3answers
16k views

How do I configure dhcpcd to call wpa_supplicant for a specific interface?

$ uname -a Linux pi 4.9.59+ #1047 Sun Oct 29 11:47:10 GMT 2017 armv6l GNU/Linux System fully updated via apt. I'm aware there are many, many questions and blogs on this topic, but after several days ...

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