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.

Filter by
Sorted by
Tagged with
2
votes
0answers
20 views

How to dynamically connect to wifi hotspots when I find them?

I'm doing a robotics project in which I have multiple raspberry pi powered robots. When they meet eachother one of them can decide to set up a wifi hotspot and the other ones should connect to it. ...
1
vote
1answer
38 views

Share 4G USB Internet on Raspberry Pi 4 over WiFi and Ethernet

I've already set up my RPi 4 as a hotspot using dnsmasq and hostapd, using a USB 4G modem to connect to the internet. This is working as expected, I'm able to connect other devices to it and get ...
0
votes
0answers
23 views

Socket communication between Pi and Arduino

I'm a beginner with Raspi and I would appreciate your advice and input on a project I'm working on. Hardware: Raspi 3B+ with latest Rasbian, Arduino MKR 1000 I have a bunch of sensors attached to ...
2
votes
2answers
117 views

How to configure Ubuntu 19.10 Raspberry Pi 4 wifi to automatically connect?

How do I configure wifi to automatically without rebooting? For example, like phone, when my phone detect wifi that has connected, it connect the wifi network automatically without reboot and any ...
2
votes
0answers
15 views

Connect to a proxy server but only from specific interface (eth0)

I want to connect my Raspberry Pi to the university network. I was successful to connect it to eduroam (WLAN). Some times I would also like to access the universities network over LAN. For doing so, I ...
1
vote
0answers
34 views

Can we control a RPI with an Android smartphone wirelessly and without Wi-Fi?

I got a RPI4 and I would like to use it outside, where there is not always an avaiable Wi-Fi connection . I would like to create a sort of an headless machine and control it with a smartphone, without ...
0
votes
1answer
38 views

Cannot connect to a DHCP server

I am trying to set up an ad-hoc network of Pis (not connected to the Internet). I am able to ping and ssh among the Pis by changing the /etc/network/interfaces file by adding the lines to each Pi by ...
0
votes
1answer
49 views

USB WiFi dongle ad-hoc criteria

I'm trying to setup an ad-hoc network (intranet-only, no internet) of RPi4s (Buster 2019-09-26) using dongles with detachable antennas. I can successfully setup ad-hoc modes on the internal WiFi (...
0
votes
1answer
26 views

Cannot connect to Ad-Hoc Wifi

I am attempting to set up a Ad-Hoc Wifi network of multiple PIs , none of them are supposed to be connected to the Internet. I could configure one of the PIs to act as a Ad Hoc Wifi device which ...
0
votes
0answers
90 views

Raspberry Pi 4 no wifi after update && upgrade

I am new to Raspberry Pi and Linux. I followed all the setup guides and have a 4" touchscreen with a case. I downloaded MPI4008-4.0inch-2019-07-10-raspbian-buster.img and flashed it to SD. I had to ...
0
votes
0answers
33 views

Why does my Raspberry Pi's IP address not show up on my router, but has the old dynamic IP address?

I recently changed my Raspberry Pi 3B setting in dhcpd.conf to set a static private IP address. I've been able to SSH into the pi, as well as ping it. But for some odd reason, when I check my router's ...
2
votes
1answer
35 views

Raspberry Pi 4 does not see 5GHz networks

I've got myself a new Raspberry Pi and installed Raspbian (fullest of editions) using NOOBS. During installation (i presume for package download) Raspberry clearly saw and was able to connect to my ...
-1
votes
0answers
25 views

Check WiFi Credentials from PHP API

I have put together a custom pi running raspbian that creates an access point if it can't connect to a wifi connection set within wpa_supplicant.conf. The mobile app connects to this connection and ...
-2
votes
1answer
36 views

How to print list of availble networks and connect using python

I have been search for a couple of hours to find a a tutorial on how to show the list of available networks and connect to a network programmatically.I don't want to use command line. I have ...
0
votes
0answers
20 views

How to lower the power of an RT2870 USB Wlan adapter on Raspbian

I have to lower the range of a wlan adapter to limit the area I'm capturing data in. I'm using the newest version of Raspbian, Pi 4 and the adapter is ralink rt2870 I've tried adjusting the txpower ...
2
votes
1answer
48 views

Raspberry Pi can ping others but can not be pinged

I am new to Raspberry Pi. I have two Raspberry Pi. One of them is connected internet via Wifi dongle. I can ping others in the network and can be pinged from others. But the second one has ...
2
votes
2answers
180 views

Setting up Raspberry Pi 4B to be a wifi access point

I want my Raspberry Pi 4B to create a wireless network that connects to my router, without using any external devices to assist the pi (ie. a secondary router or an antennae that would connect to the ...
1
vote
1answer
51 views

WLAN module gone - RPI 4 B+

The WLAN module of my RPI 4 B+ disappeared. At first I thought that the hardware component had blown. How can I properly diagnose whether there is a hardware or software problem? What I have done for ...
1
vote
1answer
47 views

Raspberry Pi 4 Wifi disconnected after change screen resolution

I'm having some problems with Raspberry Pi 4... The wifi works normally when I use 1920 x 1080. But when I change the resolution from 1920 x 1080 to 1280 x 720, the wifi suddenly disconnected and ...
-1
votes
1answer
69 views

Media Server on the Pi with Lan connection to TV

Is there a way to set up a media server on the Pi for streaming Video Files, and have a TV connect to it over Lan? The TV could, in theory, access a media server that is running on the router, I am, ...
1
vote
0answers
17 views

Infrared Camera Project: Is the following possible?

first post here/new raspberry pi user. I'd like to use the raspberry pi with the FLIR infrared camera in order to create a display-less security camera that will set a wireless alarm if a temperature ...
-1
votes
0answers
37 views

My USB wifi adapter won't connect to the internet

I have a USB wifi adapter connected to my raspberry pi, the Pi knows its there, using lsusb I can see the wifi adapter and I have configured the /etc/network/interfaces file to be the right network ...
0
votes
1answer
54 views

Pi Zero W WifI nework connection issues

I have a Raspberry Pi Zero W project that needs a network connection for some of its functionality. The device normally does not have keyboard and display attached, as its operated by hardware ...
0
votes
0answers
25 views

wlan0 keeps coming up

wlan0 gets disabled at startup. I've checked it and it is down right after startup. When I check 15 min later, the wlan0 interface is back up again. Is this normal behavior? If not, how can I check ...
1
vote
0answers
21 views

Stream Webcam to Windows pc

Does anyone know how I can stream the webcam from my raspberrypi to my windows pc via wifi? Ive tried gstreamer but this just doesnt work for me and ive read the performance is really bad. there ...
0
votes
1answer
60 views

Raspberry PI 3 B+ 5g wifi problem

raspbian 10 buster. i tried to connect 5g but it didnt ever see the hotspot. i changed wi-fi county to US and it helped. now it discovers the hotspot and i can connect to it but connection breaks ...
0
votes
0answers
17 views

Data transfer to Cloud in case of unstable WiFi link

I am building a small IoT system using a Raspberry Pi. On one side a sensor on the other side the cloud for data storage. Between the Cloud and the pi there is a WiFi link. This link is not stable, it ...
1
vote
0answers
28 views

How to install the command WL

I installed the utility wl to enable some radio test: sudo apt-get install wl The added files are : /var/lib/emacsen-common/state/installed/wl /usr/lib/emacsen-common/packages/remove/wl /usr/lib/...
0
votes
0answers
106 views

Wifi not connecting on Raspberry Pi 4 with Ubuntu Server 19.10

I installed Ubuntu Server 19.10 on a Raspberry Pi 4 with no ethernet connection available, and I was initially able to get it to connect to wifi with wpa_supplicant and dhclient. That allowed me to ...
1
vote
0answers
16 views

API requests on standalone WIFI access point

After following this tutorial, I was able to create a standalone WIFI access point. Now, I would like to run a server I developed in C++ and do API requests from an App on my phone. Then, I would ...
0
votes
0answers
34 views

Pi 3 is connected to internet, can't ssh or ping

The follow problem has been occurring for 2 weeks with my Pi 3 (Pi, SD card, power supply are all brand new). After configuring, I boot up my Pi (stretch), it connects to the internet, I am able to ...
1
vote
1answer
31 views

On GUI-less Pi 4B, wifi fails to connect every 4 or 5 boots

I'm building an IOT device on a slightly modified raspbian (kernel preempt is enabled) on a pi 4B 2GB without a GUI (runlevel N 5) and relying on wpa_supplicant to make and maintain a wifi connection. ...
2
votes
1answer
56 views

Trouble connecting headless Pi 4 to Wifi

Running the latest download of Raspbian, trying to set up headless. I did the ssh file and wpa_supplicant.conf, but it didn't show up on the network. So I've plugged it in with an ethernet cable, and ...
0
votes
1answer
20 views

How to put “UP” my wlan0 Raspberry PI 4 [duplicate]

I have a simple probleme but i'm a novice on the Raspberry pi. Currently i have a Raspberry Pi 4 and i want to connect it to my wifi. I use rapbian less desktop and at the start my twice network was ...
1
vote
1answer
58 views

Configure Static IP For bridge connection

I am working on Raspberry pi 3B+ (Having Ethernet and wlan both). Currently i am trying to create a bridge connection between my Ethernet port and tap which i am using for other purpose. Below ...
2
votes
1answer
23 views

Unable to connect to Raspberry Pi via router

I set up the Raspberry Pi with a connection to my router and it shows that it is connected with tooltip: wlan0: Associated with <ssid> wlan0: Configured 192.168.1.<N>/24 eth0: Link is ...
2
votes
2answers
46 views

How to switch back and forth between 2 WLANs, of which 1 hidden?

In my (development) situation, I have 2 WLANs: 1. local with hidden SSID and no internet access. 2. not-hidden, with internet access. I sometimes need to switch between them. Switch 1->2 is ...
0
votes
0answers
14 views

Interface gateway IP gets auto-configured after some time after deletion

I'm writing a script to control my network interfaces. I've three network interfaces viz eth0, ppp0, wlan0. I want such a configuration that when there is no internet available on eth0, it should ...
1
vote
1answer
34 views

Raspberry PI random connection interruptions

i am running a raspberry pi B+ headless and losing network connection irregulary. I am living with that since a few years, but now want to fix the problem. What would be a good approach to find out ...
0
votes
0answers
42 views

Raspberry losing connections for some devices

I have a system that run 24/7 on raspberry. Eventually, I have to change the raspberry and the OS (Operational System, the rpi Image, um fact) of it. My last update was to change the OS to the last ...
1
vote
0answers
26 views

Connect to wifi using custom iPhone/Android app without SSH [closed]

I'm new to this and would like to ask a question. Is it possible to connect raspberry pi zero w to wifi like this: https://youtu.be/9yTg-iWPy28?t=84 or https://youtu.be/2l3NBCWbjwk?t=15 I want to ...
2
votes
1answer
35 views

Raspberry Pi Compute WiFi module via USB

I am designing a board around the RBp Compute and would like to add WiFi connectivity to this device. However, I do plan on using USB 2.0 for its datarate (e.g. to send and receive images), so the ...
0
votes
2answers
41 views

WiFi network disappeared?

I set up my RasPi 4 as a WiFi Access Point according to this guide, and it worked - I could see the SSID in the list of networks, and join the WiFi network, and connect using ssh, but only for a brief,...
1
vote
2answers
103 views

RasPi 4 -> WiFi Access Point?

I have been trying to set up my RasPi 4 as an WiFi access point, but with no success. however, the guides I have been using were written for RasPi 3: thepi.io sparkfun I'll follow the guides, but ...
4
votes
1answer
180 views

Wifi to Ethernet Bridge

I've read a lot of contradictory posts about this topic, but essentially what I need is for my Raspberry Pi to act as a WiFi dongle for an ethernet-enabled device. The ethernet device connected to the ...
0
votes
0answers
15 views

pi connecting once to wifi

Just starting with octopi, following official octopi instructions. Bought a pi3A+, Etched a 4Go micro sd card with the latest octopi distro (0.17.0) Using a 5V bench power supply that delivers up to ...
1
vote
1answer
38 views

Can Raspberry Pi Zero ‘W’ route wlan0 traffic to usb0?

I’m trying to turn a Pi-Zero W into a USB WiFi dongle but have not found any instructions or much about the possibility. What I have tried hasn’t worked. Now I wonder if it is even possible to route ...
2
votes
3answers
197 views

Configuring a Raspberry Pi as a bridge? (purpose: extending WIFI)

Context: I have a raspberry pi working properly with its version of Raspian (actually I have all the Raspberry Pi version, all). The problem to solve: The wifi where I work does not reach every ...
1
vote
0answers
39 views

I wanna make a raspberry pi car using an RC car. I would like to know if the servo multiplexer is necessary? [closed]

I've asked this question in the Robotics Stack Exchange and I am asking here as this is kind of important and I need some answers fast. My apologies if this is rude or if it causes problems in any way....
3
votes
2answers
53 views

How an I improve sshd latency over WiFi?

I am using my pi4 as a portable dev server which I ssh into from a Chromebook over my home WiFi network. What I'm seeing is that the character latency is very high, seriously impacting my developer ...