301
votes
Accepted
Prepare SD card for Wifi on Headless Pi
There are some great answers here, but many are out of date. Even this one has aged somewhat. There are now (at least) two ways of doing this:
1: Raspberry Pi Imager
The Raspberry Pi Foundation's ...
- 8,848
26
votes
Accepted
Setting up WiFi and Ethernet
This applies to Raspbian Wheezy prior to 2015-05-05 for later (and Jessie/Stretch) See How do I set up networking/WiFi/Static IP
As suggested by the community, my answer extracted from the question.
...
- 996
23
votes
Where are the WiFi config settings stored?
Default behavior seems to consist in storing wifi settings in /etc/wpa_supplicant/wpa_supplicant.conf, just like @lucaslink mentionned. I'd like to provide a bit more details however. Here is how ...
- 331
18
votes
Connect to unsecured wireless network
For me, the recommended solutions above were unsatisfactory. For one, I have a blank in my SSID, so I needed to specify it in quotes. Secondly, I have several SSIDs here, and I want to connect to one ...
- 181
18
votes
Accepted
Using Pi 3 for wireless display/miracast
I have developed lazycast that is designed to work on Raspberry Pi 3. lazycast follows (most of) the wifi display specification (commercially known as Miracast) and uses wifi p2p (commercially known ...
- 196
17
votes
Raspberry Pi sleep mode, how to avoid
I know this is an old question, but it was the first result that came up in my search when I had essentially the same problem on my freshly installed Pi Zero.
I found the key to my answer on this ...
- 271
16
votes
Accepted
Connect to unsecured wireless network
I changed wpa-ssid ="network-essid" to wireless-essid my_essid_without_quote and, now, it works fine.
auto wlan0
allow-hotplug wlan0
iface wlan0 inet dhcp
wireless-essid my_essid_without_quote
- 1,165
14
votes
How to automatically reconnect WiFi?
This can be solved with no extra scripts.
In /etc/network/interfaces put:
allow-hotplug wlan0
iface wlan0 inet manual
wpa-roam /etc/wpa_supplicant/wpa_supplicant.conf
iface default inet dhcp
The ...
- 249
13
votes
Prepare SD card for Wifi on Headless Pi
Since November 2016 SSH has been disabled by default in standard Raspbian images for security reasons.
To re-enable it, create a blank file called either ssh or ssh.txt on the sd card boot folder ( ...
- 931
11
votes
I can not get my WiFi connection to work
You might have multiple instances of wpa_supplicant running.
try
ps ax | grep "wpa_supplicant -B" | grep -v grep
kill {pid of wpa_supplicant}
if that works then you can try this
sudo kill $(pgrep ...
- 111
11
votes
Connect to unsecured wireless network
Add the following to the end of /etc/wpa_supplicant/wpa_supplicant.conf :
network={
key_mgmt=NONE
priority=-999
}
That'll connect to any open / unsecured wifi in range.
The priority ...
- 931
11
votes
Accepted
Raspberry Pi Zero W as a WiFi repeater
This setup is DEPRECATED and no longer maintained!
Look at Access point as WiFi repeater, optional with bridge for a more flexible setup.
It is possible to use the wifi device on a Raspberry Pi as an ...
- 39.5k
10
votes
Accepted
Automatically Create Hotspot if no Network is Available
The following can also easily be installed from a github repository that I created here .
First we need to change over completely to systemd (which might be the future anyway), as Ingo has explained ...
- 1,081
8
votes
Accepted
How to disable dhcpcd
sudo systemctl stop dhcpcd.service will stop (deactivate) dhcpcd
sudo systemctl disable dhcpcd.service will prevent it from restarting.
Having said the above, I think this is a bad idea.
There are a ...
- 53.3k
7
votes
Wifi - bring wlan0 up on boot
Your original config was ok, except for the comma's in your first line.
So use auto lo eth0 wlan0 instead...
My config:
auto lo wlan0
iface lo inet loopback
iface wlan0 inet manual
wpa-...
- 171
7
votes
How to change a wlan0 mac address?
For "Raspbian GNU/Linux 8 (jessie)" (cat /etc/os-release), "Raspberry Pi reference 2017-06-21" (cat /etc/rpi-issue) (maybe also 2017-07-05) (thanks @Heinrich Ulbricht) and earlier see my answer here.
...
- 879
7
votes
Accepted
I get WiFi timouts with the rt2800usb driver
It seems to be a known problem. From what I've found, all we can do is:
# disable power management (may need to be done periodically?)
iwconfig wlan0 power off
and disable hw encryption (so it will ...
- 208
7
votes
Mysterious RPi wifi problem -- No wireless interfaces found
One of the things that I have read a hundred times in dealing with anything attached to the USB on any model of RPi is to make sure that you have a decent Power Supply (2 or more Amps) or use a ...
- 71
7
votes
Accepted
Connecting to universities WPA2-Enterprise Wifi Network
English is not my native language so please be patient.
When I don't know how to configure something, sometimes I let the system do it for me, mostly of the times, things works with default values. ...
- 286
7
votes
Accepted
How do I start and stop the on board wireless access point?
I assume you are using Raspbian and you have setup the access point with hostapd. To switch the access point this commands should do:
rpi ~$ sudo systemctl stop hostapd.service
rpi ~$ sudo systemctl ...
- 39.5k
6
votes
Forcing one of two wifi dongles
I found out myself...it is actually very easy: I just have to add rules to the
udev system to assign explicit names to the usb dongles (depending on their
mac address). Then interfaces can be set up ...
- 111
6
votes
Accepted
Edimax ew-7811un not operating at 5Ghz - Do I need to configure this?
The Edimax EW-7811UN does not work in 5GHz networks, it is only caable for 2.4GHz (see http://www.cnet.com/products/edimax-ew-7811un-network-adapter/specs/).
- 186
6
votes
Raspberry pi always stops responding to SSH after some hours powered
Stuff like this can be really tedious to peg down, since unless you have a keyboard and monitor you can plug in, there's no way, if ssh doesn't work, to check what's gone wrong on the live system.
...
- 55.6k
6
votes
Accepted
Weather Balloon - How to Transmit Data?
At those ranges Gigahertz comms (WiFi/Bluetooth) won't cut it. Check the Pi in the Sky project ,
which uses 433 MHz comms by default.
Depending on your range requirements you might want someone with ...
- 6,015
5
votes
Where are the WiFi config settings stored?
I had the same issue, where WifiConfig GUI would not remember the deletion/removal of ssids in the Manage Networks tab. Raspbian doesn't have 'NetworkManager' settings but instead holds all network ...
- 51
5
votes
Wifi works, ssh can connect, but cannot connect out to the internet, cannot ping internal machines
I found my answer here: https://www.raspberrypi.org/forums/viewtopic.php?f=91&t=31238
Basically, it suggests you try this to "see where the internet connections stops":
traceroute www....
- 276
5
votes
Raspberry Pi and Arduino communicate over RF?
Don't buy those crap receivers and transmitter. At least pick one that has a crystal. The ones you linked to just provide the modulation of the signal. You'll have to implement a protocol yourself.
...
- 2,400
5
votes
Accepted
Is the Raspberry Pi suitable for use as a commercial WiFi Router?
I can't say I've tried this personally, so what follows is all just an educated guess, but try comparing the Pi's hardware to a home router (which should handle 10-20 connections happily):
I've got a ...
- 3,928
5
votes
TeamViewer on Raspberry Pi
TeamViewer cannot be used on the Raspberry Pi at this time. They do not have a build for it.
You can install a VNC server, and that would be your simplest option. You would have no issues connecting ...
- 151
5
votes
Wake up 'sleeping' wlan-connection
These problems often seem to be related to wireless power management.
As a first attempt try
iwconfig wlan0 power off
- 66.3k
Only top scored, non community-wiki answers of a minimum length are eligible