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Questions tagged [wifi]

WiFi is a networking technology permitting the exchange of information through wireless (radio) connections.

71
votes
8answers
428k views

Connecting to wifi network through command line

I am trying to connect to my WEP network just using the command-line (Linux). I run: sudo iwconfig wlan0 mode Managed essid 'my_network' key 'xx:xx:... hex key, 26 digits' Then I try to obtain an ...
49
votes
2answers
60k views

How do I find out if my wireless card supports 5ghz?

I have the 03:00.0 Network controller: Intel Corporation Centrino Wireless-N 2200 (rev c4) How do I find out if that card/driver support 5 GHz?
26
votes
3answers
199k views

How to bring up a wi-fi interface from a command line?

I can't figure out how to properly bring up the wi-fi card on my laptop. When I turn it on and issue $ sudo iwconfig wlan0 txpower auto $ sudo iwlist wlan0 scan wlan0 Interface doesn't support ...
25
votes
5answers
41k views

Is there a way to list the connected devices on my wifi access point?

I have an Angstrom Linux device acting as an access point, running hostapd, dhcpd, which works fine. Can I get a list of devices connected to the Wi-Fi? I know I can get the DHCP leases, but I need to ...
22
votes
3answers
75k views

How to find out which Wi-Fi driver is installed?

I know about lsmod, but how do I figure out which driver does what?
20
votes
1answer
15k views

Linux find WiFi Networks protocol(a/b/g/n) version of all available access points

I do use iwlist wlan0 scanning and it gives me a fair amount of data, but one part is missing. It is protocol version. By protocol I mean (a/b/g/n). It would be very good to have these commands in ...
19
votes
2answers
13k views

Use wpa_supplicant without plain text passwords

I'm running gentoo on my laptop, and I'm currently using wpa_supplicant to handle wifi. My configuration works and I can connect, but it is required to type in the plain text password into the ...
18
votes
5answers
40k views

How to turn off Wireless power management permanently

In Linux Mint 17.3 / 18 iwconfig says the power management of my wireless card is turned on. I want to turn it off permanently or some workaround on this issue. sudo iwconfig wlan0 power off works, ...
18
votes
6answers
16k views

Equivalent of iwlist to see who is around?

What is the equivalent to: iwlist wlan0 scan to see who (what computers and smartphones) are around me? Maybe putting the card into monitor mode before doing it.
17
votes
5answers
82k views

How to put Mac OS X wireless adapter in monitor mode

I'm searching for a equivalent of "iwconfig eth0 mode Monitor" in Mac OS. From man iwconfig mode Monitor does the following: "the node is not associated with any cell and passively monitor all ...
16
votes
4answers
40k views

Can't access Eduroam wireless internet connection SETTINGS (Linux Mint 17)

Using Linux Mint (Cinnamon Desktop) I have not been able to connect to the eduroam wireless university network. The reason is that I can't find a proper way to enter the respective network settings, i....
16
votes
2answers
38k views

How to connect to internet using `nmcli`?

According to this link nmcli dev wifi con a52c60f5-c1af-4d39-8dc8-728bd770bffc password 12345678 name dlink_home should establish the connection, but it outputs the following error when I try to ...
16
votes
2answers
30k views

Arch linux wifi works manually, how to make it automatic?

Running Arch Linux with kernel 3.6.11-12-ARCH+ on my Raspberry Pi. I have a Linksys wifi usb dongle (WUSB54GC v3) that is running and working after I execute the following commands: $> sudo ...
15
votes
4answers
63k views

Arch Linux not connecting to Wifi anymore

I have been using Arch Linux over a month now. I have used wifi-menu to connect to my Wifi Network. I run the command every time I start my laptop. wifi-menu always gives this error when I try to ...
15
votes
1answer
1k views

What to do with a circular dependency between two packages in Fedora?

I am new to Fedora and recently installed Fedora 26 OS. I am trying to connect to wifi using that. I followed the youtube video Broadcom installation and tried to install the Broadcom drivers. I have ...
15
votes
2answers
98k views

How to connect to wifi from command line?

I'm using latest version of Debian-based Linux Kali. Maybe it is an XY problem, as the main problem is after I log in to the system I get a blank screen and mouse pointer. Somebody on the Internet ...
15
votes
3answers
7k views

Can SSH passwords be sniffed out over Wi-Fi?

When you ssh, can the password you enter to connect, be intercepted if you're using untrusted public Wi-Fi (coffee shop, library, airport, etc).
14
votes
4answers
14k views

Error compiling drivers for Ralink RT2870

Im trying to install drivers for a rosewill RNX-N600UBE wireless card (Ralink RT2870 chipset) on Kali Linux. I downloaded the drivers form their website and unpacked/unzipped them, but now when i try ...
14
votes
5answers
11k views

Is there a tool to display WiFi information in console?

Can I view detected WiFi networks details (like signal strength, encryption etc.) in command line? The more detailed - the better.
14
votes
4answers
21k views

Create wireless access point and share internet connection with nmcli

How can I create a Wi-Fi hotspot with command line tool nmcli and share the ethernet internet connection to the wireless access point? Furthermore how can I start this automatically at boot? Is that ...
14
votes
1answer
60k views

What exactly is an ifconfig dropped RX packet?

I'm seeing very high RX dropped packets in the output of ifconfig: Thousands of packets per second, an order of magnitude more than regular RX packets. wlan0 Link encap:Ethernet HWaddr 74:da:38:...
14
votes
2answers
66k views

WiFi error wpa_supplicant

I have a problem with the wpa_supplicant program. My problem is about the use of wpa_cli which needs wpa_supplicant. Error when I'm executing sudo wpa_cli: Could not connect to wpa_supplicant The ...
14
votes
2answers
26k views

Airdrop compatible

Is there anything in Linux that implements whatever it is that makes Airdrop in OS X work? I'm not really familiar with that program, so I'm not sure what protocol it's using to communicate. update ...
13
votes
7answers
3k views

Naming convention standard for Ethernet and Wi-Fi interfaces on Linux machines

What is the naming convention standard for Ethernet and Wi-Fi interfaces on a Linux machine? We are developing a tool that should show only the Ethernet and Wi-Fi interfaces of the Linux machine and ...
13
votes
3answers
130k views

Connecting Linux Mint to WiFi network

I just installed Linux Mint 17 (MATE) on an old laptop and everything works amazing, however I can't seem to get it to connect to my WiFi network. All my other computers can get access, plus, before ...
12
votes
4answers
31k views

Get Wi-Fi interface device names

Similar to a previous question about finding network device names, I would like to get a (reliable) list of device names but just for Wi-Fi devices. So that it looks like the following depending on ...
12
votes
6answers
70k views

'iwlist' -> interface doesn't support scanning (Ubuntu LTS 10.04)

I am using Ubuntu 10.04 (LTS) on a Samsung N150+ netbook. I cannot scan wifi networks using iwlist and I would like to do so. Here is the output from some tests: alex@alex-laptop:~/Desktop/...
12
votes
1answer
14k views

b43 wireless driver error

I just installed Arch, and I noticed that my wifi range is very poor. I have to be about 10 feet away from the router for it to work. I also noticed that when I boot, I get this message: Support ...
12
votes
4answers
25k views

How do I authenticate to a wireless provider's “open” network without using a browser?

This sort of a setup seems to be common in shopping malls and airports. In Western Canada Shaw provides such a service and calls it "Shaw Open". I'm pretty sure other locales have similar services ...
12
votes
2answers
21k views

Where are NetworkManager's WiFi settings stored?

I remember the days of playing with /etc/$WE/wpa_supplicant.conf to try and force a semi-secure network on a debian based system, but now on to xubuntu, I haven't needed to do any *.conf-ing in a ...
12
votes
0answers
4k views

Random “deauthenticating by local choice (Reason: 3=DEAUTH_LEAVING)”

I'm running uname -r 4.10.6-1-ARCH on my dell XPS 13 developer edition (2014). I'm currently having strange problems with my wifi (I use Networkamanger with nm-applet for KDE): 1) at the most ...
11
votes
1answer
12k views

Subsequent calls to wpa_supplicant fail - can't connect to wifi

I have an ubuntu 15.10 server which utilizes wpa_supplicant to connect to wireless network profiles created with wpa_passphrase. On a fresh reboot, the first time I call sudo wpa_supplicant -B -i ...
11
votes
2answers
19k views

How do I use NMCLI to create a Wifi connection & connect to SSID over WPA?

Environment BeagleBone Black running Debian 7.7 nmcli tool, version 0.9.4.0 I tried some command examples to get started, however none helps me to add a connection and connect. Devices # nmcli dev ...
11
votes
2answers
22k views

wlan number assignment

How or where does Linux determine the assignment of a network device? Specifically, wlan0 or wlan1 for wireless USB devices. I plugged in a TP USB wireless a while ago, and it was assigned wlan0. I ...
11
votes
2answers
26k views

How to find speed of wlan interface?

I'm trying to find speed of network interface using file-descriptor. It's easy to do it for ethX, just calling cat /sys/class/net/eth0/speed. Unfortunately this method doesn't work with wireless ...
11
votes
3answers
27k views

Ubuntu 12.04 hotspot wifi network not visible to Android 4.1.2

I'm running Ubuntu 12.04 LTS on my notebook, and I've got a Motorola Razr which I updated to Android 4.1.2. Before updating, I connected my smartphone to my hotspot wifi very quickly, but after the ...
11
votes
3answers
15k views

WiFi: `iw reg set US` Has No Effect

In the process of trying to diagnose WiFi dropouts, I discovered that the regulatory domain on my WiFi interface is set to "world" (00), and changing it to my region (US) should help fix the issue. ...
11
votes
1answer
10k views

Create a wifi hotspot on Gnome 3 / Arch Linux

I'm trying to create a wifi hotspot in gnome shell and Arch Linux. I open "System Settings" > "Network", then I select "wifi" on the LH side and click "Use as Hotspot..." on the bottom. The system ...
10
votes
2answers
2k views

Why did wireless tools version 30 become a permanent beta?

I found some good information about wireless tools in this Q/A. Apparently it was introduced to the Linux kernel in 1997 by Jean Tourrhiles sponsored by Hewlett Packard. Edit: It seems WE(Wireless ...
10
votes
4answers
6k views

Automatically reboot, if no wifi connection for a certain time

It seems that my Raspberry Pi server loses wifi connection after a random time and is somehow not able to recover automatically. Usually a reboot done by hand resolves the problem. I would like to ...
10
votes
2answers
19k views

Hotspot and Internet access together — why not?

If I try to set up a hotspot in GNOME, I get the following message: If you have a connection to the Internet other than wireless, you can use it to share your internet connection with others. ...
10
votes
1answer
29k views

How do I configure a network interface bridge from WiFi to Ethernet with Debian?

I am using Raspberry Pi using Raspbian which is just Debian. I would like to bridge from the primary WiFi network router that connects to Cox Cable to my cabled router here for my subnet to have ...
10
votes
1answer
11k views

How to fix “deauthentication by local choice”?

I built an embedded Linux using Buildroot and I have some trouble to stay connected to my AP. Cannot get an IP address more than once. I use wpa_supplicant to connect to my AP using WPA2-PSK. It ...
10
votes
1answer
5k views

how to transfer files from canon cameras over wifi?

Canon cameras like powershot s120 and sx600hs have wifi capability. How could that be used with linux to transfer images and videos without involving Windows in any way?
10
votes
4answers
6k views

wireless is disabled by hardware switch even when not

I have a spartan computer. It has a built-in wireless module that up until recently I've had no issues with. The current problem is this: every time I shutdown the computer and it boots back up, I am ...
10
votes
1answer
21k views

network manager not listing wifi

When I use NetworkManager command tool to scan for wireless networks the output is empty. root@radxa:~# nmcli dev wifi list SSID BSSID MODE FREQ RATE SIGNAL SECURITY ACTIVE root@...
10
votes
3answers
9k views

Terminal commands equivalent to NetworkManager's “Use as Hotspot” option

I'm making a gui application which will control my laptop in order to make it act as a wifi hotspot. I may change distributions so I want to find a solution which will work generally for all ...
10
votes
1answer
5k views

How to debug repeated Wi-Fi disconnections in Arch Linux?

After trying for a long time to get a wireless connection, I am now able to get an extremely sketchy one (as in a few seconds of actual Internet access every few minutes). Running wpa_supplicant -d -i ...
9
votes
8answers
68k views

Ubuntu | No WiFi Adapter found

I have installed Ubuntu 17.10 on my notebook. However, I cannot connect to wi-fi because there is a "No Wi-Fi Adapter Found" message. I don't have any idea what to do next. My notebook : Asus X555LN-...
9
votes
5answers
21k views

How to sign into an open Wireless Network?

I'm running Arch Linux on my netbook. My school have an open Access Point and we must sign into the network via a page which we are redirected to when we try to open whatever website if we are not ...