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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40 views

Possible Multiple RPis streaming HD video to a server?

I would like to set up several RPis to stream HD video through wi-fi to a central regular desktop computer that will store it. This will look very similar to a surveillance system, but in this case I ...
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1answer
97 views

network manager dbus interface calls for wireless doesnt work on raspbian

I have the following code to retrieve access points information using NetworkManager dbus api: //--------------------------------------------------------------------------------- QDBusInterface ...
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0answers
28 views

Cannot manage wlan0 from desktop

Good day all Pi folks! I have a Pi 3A (buster) which has the onboard Wifi (wlan1) configured as an access point. I installed a second Wifi USB TL-WN725N which comes up as wlan0 and is the outside nat'...
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2answers
67 views

Pi 3a added 2nd Wifi TL-WN725N did hostAP procedure but desktop says “No Wireless Interfaces Found”

did this here: https://www.raspberrypi.org/documentation/configuration/wireless/access-point.md ... using wlan1 (onboard pi wifi) instead of wlan0. I get "No Wireless Interfaces Found" on the ...
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0answers
90 views

Suddenly can't connect to internet but SSH is ok

I was trying to fix a problem that the pi can only connect to the internet using the 5-Ghz wifi but not 2.4-Ghz, after messing with router and the network manager settings, I couldn't solve it but end ...
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1answer
37 views

Setting up SSH when using different wifi networks?

Bit of a raspberry pi newb here so bear with me! Im using a raspberry pi model 3 for a university project, which means that I hop around different locations and have to get on different wifi networks. ...
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0answers
85 views

'No wlan0 interface found' on Raspberry Pi 3B+ Running Retropie

My WiFi has stopped working on my Raspberry Pi 3B+ running Retropie. When I enter the WiFi settings and then select 'Connect to WiFi network' I get this: No wlan0 interface detected I have tried ...
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1answer
140 views

VNC/Screen Mirroring over raspberry pi 4 hotspot

So far found ways to set up a VNC server with the local network. However, I'm looking for a way to create a hotspot that bridges a wifi connection on the pi and host a VNC server (such as RealVNC) or ...
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1answer
5k views

Setting WiFi up via the command line Ubuntu server 18.04.4 LTS - Raspberry Pi 4 Wireless connectivity

I have the Raspberry Pi 4 Model B and my choice of RAM was the 4GB. i don't have internet via the gigabit ethernet at the moment, all i have is my smartphone to share internet via a hotspot (wifi). i ...
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1answer
286 views

RPi 4 doesn't bring up wlan1

I have a Raspberry Pi 4 with Raspbian 10 (buster) installed. This device will be placed in a waterproof metal box which will limit the on-board wifi range. So, I want to use a USB wifi adapter with an ...
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0answers
25 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
168 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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0answers
36 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 ...
1
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1answer
174 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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4answers
211 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 ...
2
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1answer
100 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 ...
1
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1answer
43 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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0answers
22 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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2answers
328 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
66 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. ...
2
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2answers
148 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 version of the hardware is Raspberry Pi 3 Model B Rev 1.2. The kernel version is Linux openhab ...
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1answer
607 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 ...
2
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1answer
36 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 ...
3
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2answers
313 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
103 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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0answers
26 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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0answers
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
2k 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
27 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 ...
12
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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
73 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
133 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
28 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 ...
3
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1answer
58 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'...
3
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1answer
207 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
165 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,...
2
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0answers
27 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
424 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
44 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
1k 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
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0answers
22 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
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0answers
55 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
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1answer
82 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 ...
1
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1answer
168 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 (...
1
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1answer
46 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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2answers
1k 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
40 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
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1answer
458 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
458 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
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2answers
53 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 ...

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