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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13 views

How to use bash script(s) to easily switch RPi between onboard hotspot and external WiFi network connection?

I've created a web based UI for an RPi based IoT project with a network settings page. It allows users to specify WiFi settings and switch between an internal hotspot and an external WiFi network. ...
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1answer
31 views

captive portal with apache on a raspberry pi

I'm trying to make a captive portal with apache as a server and a raspberry pi on AP mode. I have some trouble trying to make the captive portal splash, I tried all tutorials on the internet and I can'...
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24 views

How do you share the wifi connection of a raspberry pi over ethernet

Update: after removing "pihole" software which was controlling dns, computer is working. I have to check if the script from Mr. Agarwal works now. I followed instructions from elsewhere on this site ...
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20 views

Real-time image from Raspberry Pi transfer to MySQL in PC [closed]

right now I'm having a problem on how to transfer the image capture (image file ex:.jpg .png) from raspberry pi to MySQL database in my laptop through wifi (LAN) in real-time. Since my project is ...
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1answer
28 views

How to network boot Pi over WiFi

Since the Raspberry Pi 3B it has been possible to take out the SD card and boot over the network however this seems to imply wired Ethernet only. Is it possible to somehow specify a WiFi network, ...
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5answers
84 views

PI zero W - wlan0 connected but cannot ping router

Problem: nothing passes through the wlan0 (wifi) connection: from my PC, no VNC, no ssh working either (works on eth0) I cannot ping the router from the RPI shell either I cannot go to the internet I ...
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1answer
27 views

showing error for use the command sudo iwconfig wlan0 txpower on

For making remote ssh connection on raspberry pi 3B (os raspbian), it need to close wifi connection (to use only wired connection instead), I have found the command on SE is sudo iwconfig wlan0 ...
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1answer
34 views

USB external antenna not working

I have been experimenting with GPIO control from a local hosted web sever on the raspi 3B+, Unfortunately the range from the built-in antennae is less than adequate for my needs. So I hopped on to ...
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20 views

Having a machine save data on Raspberry Pi 0 W and accessing it over WiFi network

This is my first attempt at creating something with Raspberry Pi 0, so I am very sorry if this question does not meet the standard Stack Exchange etiquette. I have a production line with a USB port. ...
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1answer
49 views

Internet through wifi lost after some time (on Pi4B on Raspbian)

I have a problem with my Raspberry Pi 4B running Raspbian When I boot it, internet through wifi works, but after some hours (between 6 and 24 hours, approximately), wifi is still working but nothing ...
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1answer
45 views

Does RaspAP lock the file system?

Quick question to help stop me from losing my mind. Does the standard install of RaspAP lock the file system to stop you from installing other services? Step 1. RaspAP installed and working fine. ...
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1answer
54 views

Network dynamic failover with bonding on raspberry pi 3b: cannot reach other wifi connected hosts

I am using Raspbian Buster on a raspberry pi 3b v2 and I followed the @Ingo answer in this post. The failover works correctly, as far as the gateway is concerned. In normal conditions, i.e. when both ...
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1answer
35 views

Taking an RTSP camera stream and transcoding it?

I have an aquarium camera which streams over RTSP. Unfortunately when I access the IP address, the stream wants to load a VLC plugin. I want to be able to share this stream with others without the ...
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1answer
32 views

How to specify the wifi network to connect and avoid any other (for raspberry pi 0w)

I am using raspeberry pi 0W (Debian) to connect to a specific WiFi network, the problem is that sometimes it connects to other networks (open wifi networks). I do not want to edit wpa_supplicant.conf ...
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2answers
54 views

RPi 4 connected to wifi but no internet?

My problem is similar to this question but the answer provided there is not helping me. I am working on RPI4B and connected to WiFi with my Android device. If I modify the etc/network/interfaces ...
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1answer
60 views

How to Create a Raspberry PI Real time camera server?

I have created a Real-time camera server using the Raspberry PI and I can access the live feed through the static IP address of Raspberry Pi over the LAN. But I want to create something like: When ...
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23 views

Network speed problem on Raspberry Pi 3

Both my desktop (running Windows Subsystem for Linux) and raspberry pi 3 connect to router via WiFi. Download speed from internet on desktop is decent : ~/tmp$ wget https://cdimage.debian.org/debian-...
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13 views

Network connection of raspberry pi 3 B+ in my pc

When I connected my raspberry pi to my PC( windows 7) in the network setting I am not able to find the raspberry connected to my PC.
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1answer
105 views

Raspberry pi 4 b 5Ghz wifi access point problem

I have a Raspberry Pi 4 b(4g), it perfectly works with 2.4 GHz WiFi access points, But it doesn't detect 5 GHz WiFi access points. In official specs of Raspberry Pi 4 b noted that it supports: "2.4 ...
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0answers
22 views

Raspberry Pi Zero Will only connect to Wi-Fi if HDMI Display is connected

For some reason, My Pi 0 no longer connects to the wifi networks specified on the wpa_supplicant.conf if I don't connect a display to HDMI, you could actually see the pi starting to connect ...
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1answer
2k views

Raspberry PI 3B. Wifi and bluetooth shared antenna?

I'm working on a project that involves WiFi and BLE, and for this I would like to use an esp32 due to its lower price, but there will be timing issues since the wifi and Bluetooth antenna are shared. ...
2
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1answer
48 views

Raspberry Pi 4 wont connect to 2.4ghz WiFi

I am attempting to connect to my RPI 4 to a 2.4GHz wifi signal, but it doesn't connect or provide any error messages. Instead it just remains disconnected. Oddly enough, connecting to any 5GHz signal ...
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3answers
97 views

Raspberry Pi Security Issues: SSH ATTACK? Case Study

This might be a long post so please bear with me. This is a scenario that took place a year back when I had very almost no knowledge of raspberry pi. Right now I am trying to learn some stuff about ...
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1answer
26 views

Raspberry PI network topology for mobile ITO applications

I’m working on a project where we use a Raspberry Pi to read and log live sensor data from various sources. Sensor data is delivered to the PI over USB. The next step would be interfacing with this ...
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1answer
49 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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1answer
46 views

Ubuntu Server can’t connect to Wifi

I flashed my raspberry pi with ARM server ubuntu but I can’t get my pi to connect to the wifi. I was following this tutorial, which instructs me to use ifconfig, but my pi is telling me that it doesn’...
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2answers
58 views

Really weird wifi connection issues

I have a Pi 4 that I just got a month ago. It was hooked up correctly to wifi previously, but when I booted it up yesterday I can no longer make a connection. I'm running raspbian. In the upper right,...
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0answers
25 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. ...
2
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1answer
169 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 ...
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0answers
26 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
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2answers
281 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 ...
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0answers
18 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 ...
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0answers
44 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 ...
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1answer
56 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 ...
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1answer
112 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 (...
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1answer
35 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 ...
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1answer
280 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 ...
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0answers
34 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 ...
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1answer
84 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 ...
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1answer
71 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 ...
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2answers
33 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
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1answer
52 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
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2answers
480 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 ...
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2answers
120 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 ...
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1answer
76 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 ...
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1answer
82 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, ...
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0answers
19 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 ...
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1answer
84 views

Pi Zero W Wifi network 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 a keyboard and display attached, as it's operated by hardware ...
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0answers
28 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 ...
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0answers
25 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 ...

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