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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7
votes
2answers
15k views

Access point as WiFi router/repeater, optional with bridge

I need a wireless access point that is bridged with the wired ethernet port and that is connected to another wifi internet router with a client connection as uplink. All devices connected to the RasPi ...
11
votes
1answer
11k views

Howto migrate from networking to systemd-networkd with dynamic failover

Systemd's systemd-networkd can be used to replace the existing networking system on Raspbian. How does it work with Raspbian on a Raspberry Pi with two interfaces for ethernet and wlan? Can I also ...
5
votes
1answer
5k views

Raspberry Pi WiFi to Ethernet Bridge for a server?

I wanted to create a Wifi to Ethernet Bridge on my Raspberry Pi, similar to this one. The problem is: I want to conntect a Network Harddrive (WD MyCloud) to the ethernet side. The Harddrive seems to ...
3
votes
1answer
2k views

Access point as WiFi router/repeater with additional WiFi-dongle

There are some tutorials to make an access point a WiFi repeater using only the on-board WiFi chip of a Raspberry Pi. But I want to use an additional USB/WiFi dongle as second interface for the up-...
158
votes
11answers
226k views

Prepare SD card for Wifi on Headless Pi

I need to SSH my Pi over wifi but because it is a model A board (using a usb hub is not possible - ever) and I have no ethernet, i can't configure the Pi to connect to my secured wifi network. I want ...
113
votes
4answers
218k views

How to setup multiple WiFi networks?

I go back and forth from home to school with my Pi. I just got the WiFi working last night at home using wpa.conf instead of wpa_supplicant.conf as the book I was using had the walk thru for that ...
4
votes
2answers
3k views

Workaround for a wifi bridge on a Raspberry Pi with proxy arp

I want to bridge the wifi interface with the ethernet interface on a Raspberry Pi so any device on the ethernet port becomes a member of the wifi network. Usually this is done by a bridge (OSI layer 2)...
28
votes
2answers
71k views

Sharing the Pi's WiFi connection through the Ethernet port

I have a pi running the latest release of raspbian and it's connected to the Internet using a wireless USB dongle. What I would like to do, is to share the pi's wifi connection so that any computer ...
4
votes
1answer
2k views

USB OTG Hub does not recognize devices at boot

I have an OTG hub like this sold for use by a reputable dealer for use with the Pi Zero. However, while it shows up in lsusb as an unidentified device with ID 214b:7000: Bus 001 Device 002: ID 214b:...
36
votes
7answers
102k views

Using Pi to stream all audio output from my pc to my stereo

My problem is quite simple but I have been unable to find a satisfying solution. Basically, I want my Raspberry Pi to be connected to my stereo and then play any audio output from my computer via ...
27
votes
6answers
16k views

Which model Raspberry Pi I am running?

Is there a way of determining whether the current Raspberry Pi is either a 2 Model B and 3 with Raspbian Jessie Lite 8.0? This is because I have a particular bootstrap.sh written in Bash where it ...
1
vote
1answer
2k views

Setting up Wifi direct (wifi p2p) and DHCP server

So I have a fresh pi zero w up and running raspbian stretch lite. How can I enable Wifi direct/p2p where the Pi is GO and where it has a static ip i can connect to, and install/configure a DHCP ...
109
votes
10answers
277k views

Disable WiFi (wlan0) on Pi 3

Got a Pi 3 which will always use ethernet, so trying to figure out how to disable the WiFi such that it does not even turn on after a reboot. If I do an ifconfig I see the wlan0 device. I can do ...
3
votes
2answers
1k views

Switch between wifi client and access point without reboot

I want my Raspberry Pi to be used as access point or as client connected to my internet router but not both together. So I want to switch between these two modes with one simple command without ...
15
votes
2answers
23k views

Raspberry PI 3 MODEL B - Wireless Bridge to ethernet

I've seen a lot online for a solution to make raspberry Pi 3 into a wireless bridge. But many are old articles to suit the Pi 1 and 2. This is the last article I have seen, and tried: http://blog....
3
votes
1answer
2k views

How to correctly restart wpa_supplicant debug with networkd-systemd?

I am trying to debug setting up wifi with networkd-systemd managing wpa_supplicant. The overall objective is to get wifi AP and managed client modes working at the same time. I can get managed ...
36
votes
1answer
75k views

“connect: Network is unreachable” on a working (connected) wlan0 interface

I finally managed to make wlan0 (an Edimax EW-7811Un USB WiFi dongle) connect to my router, but after an apt-get update I discovered that the Raspberry can't see outside the local network. My ...
4
votes
1answer
11k views

Raspberry Pi Zero W as a WiFi repeater

I'm currently trying to setup my Raspberry Pi Zero W as a WiFi repeater, but the kicker is that I don't want to use another USB WiFi card. First of all, is this even possible, and if it is, what ...
2
votes
1answer
3k views

RPI3 Raspbian Stretch regular connection on wlan0 AP on wlan1

I'm trying to make a very simple setup with my RPi. On the on-board standard wlan0 I want to connect to my home network normally, using a wpa_supplicant file this works very well. Now I'm having ...
15
votes
8answers
31k views

How to enable Wi-Fi channel 12 on Raspberry Pi 3?

I need my RPi 3 to connect to a Wi-Fi network using channel 12, but I'm not able to get the built-in Wi-Fi adapter to use this channel. This is what I've done: $ sudo apt-get install wireless-regdb ...
15
votes
2answers
16k views

Enable monitoring mode for RTL8188CUS via USB on Raspbian

I am trying to enable monitoring mode for a USB wifi dongle with the RTL8188CUS chipset on a raspberry pi model b+ (or any raspberry pi for that matter). $ lsusb Bus 001 Device 005: ID 0bda:8176 ...
8
votes
1answer
15k views

Switch between AP and client mode

I am working on a RPi radio project, and I'd like to be able to switch between a "setup mode" where the RPi acts as a Wi-Fi access point, allowing the user to send his/her home Wi-Fi credentials via a ...
6
votes
4answers
15k views

How to disable Wi-Fi Dongle sleep mode

before voting this question down or closing it i know there are allready answers on this here but they do not work for me. I have a Raspberry B+ with wheezy lates version and a Usb WiFi Dongle : ...
1
vote
2answers
995 views

Raspberry Pi to configure automatically as an Access Point OR WiFi client

There are many guides for setting up a Raspberry Pi as an Access Point, and even some which allow switching between Access Point and WiFi client. I wanted a setting which would work as a normal WiFi ...
46
votes
2answers
51k views

What's the difference between `wpa-roam` and `wpa-conf` in the /etc/network/interfaces file?

I posted a question previously on how to set up a static IP address on the rpi and eventually figured out, along with some others, that the answer was to change wpa-roam to wpa-conf when pointing to /...
12
votes
2answers
27k views

How to set WiFi network priority?

I understand that I can set up multiple WiFis by adding to /etc/wpa_supplicant/wpa_supplicant.conf (as prescribed in Setting WiFi Up Via The Command Line). Let's say I have two WiFis registered: ...
11
votes
1answer
49k views

RasPi 3 - wlan0 not associated

I have two RasPi3, both on the newest Jessie and updated && upgraded. The problem is that both Pis can see networks but are not connecting to them. sudo iwlist wlan0 scan Gives me multiple ...
20
votes
4answers
32k views

Does the BCM43438 WiFi chip in Raspberry Pi 3 support “monitor” mode

Does it support the monitor mode (known from aircrack-ng & co.)?
35
votes
7answers
94k views

Does Pi3 Wi-Fi support 5 GHz and does it need an extra antenna?

I was wondering if the built-in Wi-Fi supports 5 GHz networks? Will it need an external antenna to be attached to work properly?
4
votes
4answers
3k views

Is it possible to trigger 10 (or 100) Raspberries to take photos at the same time using WiFi?

Can a system consisting of 10x Raspberry Pi's, 10x RPi Camera Modules + WiFi dongles be reliably & consistently synchronized over WiFi to take photos at the same time? Or are radio triggers a ...
2
votes
1answer
602 views

Swapping between wifi client and access point?

This question is an extension of the information on this post. This question looks the same as this one but it is not. I am using systemd-networkd. I successfully followed the instructions in the ...
4
votes
2answers
20k views

How do I install the drivers for a WiFi dongle with the RealTek 8812AU chipset on Raspbian? [duplicate]

I have recently purchased an Edimax EW7811UTC AC WiFi adapter for use with my Raspberry Pi 3b running Raspbian Jessie with Pixel desktop. This WiFi dongle uses the rtl8812au chipset and the driver for ...
3
votes
3answers
2k views

Raspberry Pi 3 Model B Access Point

I have followed the following tutorial to set up an wifi access point: https://frillip.com/using-your-raspberry-pi-3-as-a-wifi-access-point-with-hostapd/ https://gary-dalton.github.io/RaspberryPi-...
0
votes
1answer
133 views

How can I set my pi 3 up to be WiFi AND ethernet router simultaneously?

I want to use my Pi as a fully fledged wifi and ethernet router. I'll connect an external modem/phone with tethering to it and want to share that internet connection with all devices connected to the ...
3
votes
1answer
1k views

How to setup an unprotected Ad Hoc (IBSS) Network and if possible with WPA encryption?

There are several tutorials out there to setup an Ad Hoc network, for example Ad Hoc setup in RPi 3. But how can I do this using systemd-networkd? And all what I've found is using unprotected ...
2
votes
1answer
251 views

Can't get wifi working in non-gui environment

I'm having trouble getting wifi working on my new RPi2. It works fine when I run X and use wpa_gui, but it's not working on the console, even when using the configuration saved by wpa_gui. The main ...
2
votes
2answers
6k views

Error on sudo apt-get update

I'm getting the below error when updating raspian. I connect via SSH via putty on the fixed wlan0 ip. Now when i run sudo apt-get update i get errors like below. Err http://raspberrypi.collabora.com ...
1
vote
3answers
3k views

Configuring 2 wifi interfaces, one DHCP and the other ad-hoc, in Stretch

I have a number of Pis running jessie, with 2 wifi interfaces. One of the interfaces (wlan1) connects to the local DHCP server, and the other (wlan0) connects to a local ad-hoc network. In jessie this ...
1
vote
1answer
1k views

Switching between AP and Client mode

I followed this tutorial to set up my RPi 3 as an Access Point. It works great and I am able to connect through it and I can also VNC to it directly from my phone when in my car (which was the main ...
0
votes
1answer
439 views

Installing wifi network adapter

I am new to Raspberry Pi. I have a headless Pi running noobs on it. The Pi is connected to a router via an ethernet cable and I am ssh'ing into it via wi-fi from a PC. I am following this tutorial: ...
41
votes
7answers
68k views

Cheapest way to controlling multiple power sockets (lights) through Wi-Fi

What I would like to see is the cheapest way possible to control my lights using my Raspberry Pi. What I imagine to control it I build an interface on my smartphone by which I can send commands to ...
43
votes
7answers
359k views

Solving “RTNETLINK answers: File exists” when running ifup

I had this problem when I got my new Wi-Fi dongle and have seen a few people with the same issue. Basically when I have one interface configured and want to swap to the other one, it throws up this ...
19
votes
2answers
38k views

Disable power on Wifi and Bluetooth interfaces during boot?

I have a Raspberry Pi 3 Model B Rev 1.2. I'd like to ensure Wifi and Bluetooth do not get powered on or draw current since the device is using wired Ethernet. According to dmesg, the device is ...
30
votes
2answers
62k views

How to get Wi-Fi to connect on boot?

Raspberry Pi Model B OS: Raspbian I am running my Pi headless (currently through a direct Ethernet connection). I have a USB WiFi dongle. I would like to have the WiFi start up at boot and connect ...
38
votes
4answers
100k views

Add an external antenna to a Pi 3

Makezine's writeup on the Pi 3 this morning included a somewhat tantalising section: The other interesting thing on the back of the board, right next to the wireless radio chip, is something that ...
15
votes
6answers
68k views

Enable monitor mode in RTL8188CUS realtek wifi USB dongle

I am trying to enable monitor mode in a RTL8188CUS dongle attached to a raspberryPI. This is the error I get when I try to change the mode: pi@raspberrypi ~ $ sudo iwconfig wlan0 mode monitor Error ...
13
votes
7answers
25k views

WiFi disconnects after period of time on Raspberry Pi, doesn't reconnect

I was finally able to get my Raspberry Pi connected to a hidden SSID network (WPA2 Personal) using the below settings (not using wpa_supplicant.conf). However, after a few hours it disconnects and ...
12
votes
5answers
43k views

How can I put RaspberryPi to Shut down and wake up later?

I want my raspberryPi to shut down during the night and wake up in the morning. I.e., at 10pm raspberry should shutdown or at least turn of the WiFi and the HDD. At 10am every day my raspberry ...
11
votes
3answers
37k views

Connecting the Pi3 automatically to Wifi

My new Raspberry Pi 3 is great, but I am facing one difficulty: my router is in the lounge (one floor down), and my laptop has no Ethernet port. Since I am using SSH to control the Pi, I always have ...
10
votes
1answer
2k views

Does WiFi on the Pi 3 reduce the Ethernet bottleneck when using USB device?

We all know that on Raspberry Pi 2 and previous models, the USB and Ethernet bandwidth is shared, so when we transfer data over Ethernet to a USB device and vice-versa we are limited by this fact. ...