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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16 views

Raspberry PI as a WiFi external sound card

The setup I am trying to create is as follows: Windows 10 laptop Raspberry pi 2 (version with 1Gb RAM) with WiFi dongle and USB Sound Blaster sound card, where the microphone and headphones are ...
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15 views

wpa_cli: Fail to join an existing p2p group with the 3rd device

I use wpa_cli on Raspberry Pi to test WiFi-Direct functionality between my 2 Android cellphones and 1 Raspberry Pi. I am able to make an p2p connection between any one of my 2 Android cellphones and ...
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2answers
29 views

wifi stops working after some period of time?

Am using raspberry pi 4 2GB with raspbian os for the last 3.5 months. everything was going well. From last week wifi is not get connecting. my pi can able to detect wifi but it's not connecting with ...
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87 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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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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15 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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2answers
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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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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17 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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1answer
25 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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28 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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16 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
43 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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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
105 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
25 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
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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34 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
32 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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28 views

wirelessly connect 4 slave raspberry pi's to master raspberry pi without access to the internet

I'm working on my senior design project using Nodejs and it involves 4 slave raspberry pi's wirelessly connecting to a master raspberry pi. The master must be able to send and receive data from the 4 ...
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1answer
74 views

Why can't my Raspberry Pi 4 connect to wireless consistently?

I'm a beginner when it comes to configuring a network through a Linux terminal. I was trying to turn the Pi 4 into a server but at some point, during configuration, I messed up the networking and had ...
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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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1answer
33 views

Raspberry Pi 3 Wifi Adapter Problems

I have a Raspberry Pi 3, model B+. A few years ago, the wifi adapter started to fail (I sometimes had to reboot it, disconnect it, etc. to get it to work), and finally it eventually died. So a little ...
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73 views

“wpa_supplicant” can't connect back to access point after restarting “wlan0” interface

I've encountered a problem with a wpa_supplicant service. After wlan0 interface restart (by restart I mean running sudo ip link set wlan0 down && sudo ip link set wlan0 up) it isn't able to ...
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35 views

How do I troubleshoot a Pi with possible hardware failure?

I bought a Pi Zero a few days ago, and I ran Pi Hole for about 24 hours before it went down. After reboot attempts and some other troubleshooting, I decided to plug the Pi Hole SD card into my Pi 3 ...
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2answers
35 views

Prevent automatic connection to open wifi

I am using a Raspberry Pi 2 with a USB wifi adapter (headless setup). The wpa_supplicant.conf file contains authentication information only for my wifi access point, and the pi connects to it as ...
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1answer
41 views

Pi4 Wireless AP: Can't Ping or Forward to eth0

Goal is for clients to connect through Pi4 AP to the WAN. The Pi4 is inside the LAN and wire connected to a router LAN port. After much effort a client can now connect to the Pi4 AP but cannot ping ...
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1answer
65 views

Raspberry Pi 4 8gig Ubuntu server 20.10 wifi power management and interface down

I am trying to get my Pi 4 setup with Ubuntu 20.10 server using WIFI. I have setup the WIFI correctly at the time of creating the image. I know this because I have a RBI 3B+ that I have done the same ...
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1answer
22 views

Why Interface wifi Change every reboot?

I connected a wifi adapter, I have a different connection configuration for each one but when restarting the interfaces change, wlan0 -> internal wifi, wlan1 -> external wifi After reboot: wlan1 ...
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1answer
90 views

Hardening RPi4 for persistent 24/7 connection to public wifi [closed]

Edited: Based on private feedback to improve Q specificity. The public wifi is typical of that provided by libraries, airports and other public spaces that re-directs a browser to sign up or login via ...
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1answer
56 views

Raspberry Pi WiFi Hotspot / Access Point

I am a beginner Raspberry Pi user and my knowledge is mainly around software. I don't know the correct terms for what I am trying to do so this may be a duplicate question. Is it possible to connect ...
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2answers
76 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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0answers
34 views

Log file for wi-fi connections

I've set up my Pi as a WAP and captive portal (nodogsplash and hostapd). I need to log connections to it in a log file ideally in JSON or XML. The log file needs to contain the date and time of ...
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1answer
91 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
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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1answer
74 views

Cannot Ping/ ssh over wifi

I have read several forums and have tried many solutions. I have a new raspberry pi 3 B+. Up to this point I have connected an ethernet cable to remote into my RPi. Now I am trying to use wifi and it ...
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2answers
53 views

Pi Zero W not selecting the strongest AP

I just got a pi zero W and I'm trying to run it on my home wifi which has two access points (EAP245). However, for some reason, the 0W insists on connecting to the AP with the lowest signal, not the ...
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1answer
65 views

How can the Pi Zero (connected over WiFi) be set as the DNS resolver for your WiFi router (instead of say 8.8.8.8)?

I'm an experienced SO'r but am a Pi n00b so please forgive my ignorance if you will. I badly want a low-effort Pi-hole. A Pi Zero seems the optimal setup for it except that I can't see how what seems ...
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0answers
44 views

Switch between Wifi networks based on signal strength from a python script?

I have followed a tutorial on Switch between wifi client and access point without reboot in order to write a python script to make it possible to change the Raspberry Pi mode from wifi client to ...
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2answers
56 views

OS image with ssh enabled

My Raspberry Pi appears to boot but there is no HDMI output. I’ve tried various troubleshooting steps but with no success. Before I go down the route of buying another Pi I was wondering if there’s an ...
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2answers
93 views

Send data to pc over bluetooth or wifi

I am working on a project where i have a motion sensor connected to a arduino connected to a raspberry pi and when the motion sensor detects movement i turn of my Windows pc. I want to connect the ...
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1answer
366 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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2answers
106 views

how to transfer file between two RPI over Wi-fi?

Hello I received two Pi 4 for Christmas. It is the first time I use RPI, I have succeeded to turn them on and to connect them to my local wifi ! I am a a beginner and I wanted to start with a simple ...
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0answers
25 views

Max. data-transfer-rate for RPi 3 over Wifi

Q1 What is the maximum data-tranfer-rate for the RPi 3B onboard wifi as access point? Q1.1 If it's > 72 Mb/s what does the config for hostapd.conf look like?
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3answers
68 views

eth0 not added to bridge br0

I followed the official guide and it works perfectly for an rPi3 running on buster but fails on an rPi4 running on buster-lite and I can't see why/I can't see the difference. The problem: In contrast ...
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0answers
24 views

Pi access point brilliant (until another pi connects to it!)

just joined and have in interesting issue. I have a Pi3b+ hooked up to my router running hostapd, dnsmasq and openvpn running an airvpn config, it is solid as a rock. It has a static IP on wlan0 192....
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1answer
51 views

How to connect the raspberry pi to the internet with the internet from a pc (via an ethernet cable) [closed]

excuse me I want to ask. I am still a beginner in raspberry pi. I have internet connection problems on the raspberry pi. I can remote raspberry with PC using ethernet. and my pc is also connected to ...

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