Hi everyone
sudo lshw -c network
-network
descrição: Ethernet interface
produto: RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller
fabricante: Realtek Semiconductor Co., Ltd.
ID físico: 0
informações do barramento: pci@0000:02:00.0
nome lógico: enp2s0
versão: 11
serial: 70:85:c2:58:41:6d
capacidade: 1Gbit/s
largura: 64 bits
clock: 33MHz
capacidades: pm msi pciexpress msix vpd bus_master cap_list ethernet physical tp mii 10bt 10bt-fd 100bt 100bt-fd 1000bt-fd autonegotiation
configuração: autonegotiation=on broadcast=yes driver=r8169 driverversion=5.15.0-69-generic firmware=rtl8168g-2_0.0.1 02/06/13 latency=0 link=no multicast=yes port=twisted pair
recursos: irq:17 porta de E/S:e000(tamanho=256) memória:d0604000-d0604fff memória:d0600000-d0603fff
-network
descrição: Interface sem fio
ID físico: 1
informações do barramento: usb@1:2.2
nome lógico: wlx503eaa69c293
serial: 50:3e:aa:69:c2:93
capacidades: ethernet physical wireless
configuração: broadcast=yes driver=r8188eu driverversion=5.15.0-69-generic ip=192.168.15.7 multicast=yes wireless=IEEE 802.11bgn
sudo ifconfig
enp2s0 : flags=4099<UP,BROADCAST,MULTICAST> mtu 1500
lo : flags=73<UP,LOOPBACK,RUNNING> mtu 65536
wlx503eaa69c293 : flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 1500
sudo iw list
sudo iw dev
sudo iw phy
sudo iw wlx503eaa69c293 info
command failed: No such device (-19)
Any idea what's going on?
You would need to identify your interface in the command for it to produce output.sudo lshw -C network output.
Do you have wireless-tools installed?
Check via: sudo apt search wireless-tools
There's a few references to iw being for unencrypted connections, and iwd for encrypted, but iw works just fine on my WPA3 WiFi.
Have you tried iwconfig?
Hi Aravisian
Sorry for the inconvenience. The returned message is in Portuguese , so "Interface sem fio" is wireless or wifi interface.sudo lshw -C network find wlx503eaa69c293, this is my USB wifi adapter.
My wifi is working and connected. As you can see below, I tried the command iwconfig, and it does not translate the returns::
enp2s0 no wireless extensions.
wlx503eaa69c293 IEEE 802.11bgn ESSID:"FREITAS" Nickname:"WIFI@REALTEK "
1 Like
Hi @Mr_Magoo instalado ,automático]
Well, I can't help you with the iw problem, no idea what's going on there...
... but I can tell you that you've got a pretty weak WiFi signal... I can run my laptop's WiFi txpower at: sudo iwconfig wlo1 txpower 1dBm, and I still get: Link Quality=70/70 Signal level=-32 dBm.
The analogous iw command to set the txpower is: sudo iw dev wlo1 set txpower fixed 100
If I increase txpower to maximum: sudo iwconfig wlo1 txpower 20dBm, I get Link Quality=70/70 Signal level=-29 dBm.
The analogous iw command to set the txpower is: sudo iw dev wlo1 set txpower fixed 2000
Does your wireless router have any settings that let you increase its transmit power? If so, crank it up. Same with your computer's WiFi card, if it's got the ability to change txpower.
If you need long-range WiFi, and your wireless router has external antennas, you can build a Cantenna to focus the signal toward your computer. Just unplug one of the antennas and plug in your Cantenna, then aim it toward your computer. I once used two Cantennas (one on the router, one on the computer) to get WiFi 4000 feet from the WiFi router.
freric007:
My issue is with iw.
If I may ask:reason you wish to use the iw command and like @Mr_Magoo , I am not familiar with much use of it.why you are using the iw command and help to resolve that issue.
Thanks @Mr_Magoo
sudo iwconfig wlx503eaa69c293 txpower 20dBm
Hi @Aravisian
About iw
iw is a new nl80211 based CLI configuration utility for wireless devices. It supports all new drivers that have been added to the kernel recently. The old tool iwconfig, which uses Wireless Extensions interface, is deprecated and it's strongly recommended to switch to iw and nl80211.
The source is here "en:users:documentation:iw [Linux Wireless] "
1 Like
I feel a bit better, now. iwconfig...
Ocka
18 April 2023 23:57
11
Not sure if this is help or hindrance
Summary
al@Al:~$ sudo iw list#channels <= 2
@freric007 Are you using Lite or Core Zorin OS?
Please click the Person Icon outlined in the white square, then click Preferences
[profile1]
On the left, select Profile
[profile2]
Then scroll down to Zorin OS Editions
[profile3]
Hi @Ocka
1 Like
Ocka
19 April 2023 00:40
13
Maybe try installing iw , maybe something happened on install?
sudo apt update
sudo apt install iw
Also maybe a total update/upgrade may solve this?
Found something...sudo iw list has the following:Supported commands:
Then there's this :Some cards don't support netlink interface to kernel which iw uses. Try using iwconfig(iwconfig ifname txpower pwr) which uses ioctl interface to kernel. "
2 Likes
Ocka
19 April 2023 00:46
15
@freric007 ,
man iw
or
iw --help
?
Added: you may now if you've re-installed iw
@Ocka and @Mr_Magoo
I updated my machine about 12 hours ago and reinstall iw
I executed sudo iw list, and it does nothing, even with my onboard network adapter.
my mother board is :lspci :lsusb :
iw --help works normal
I verified the netlink interface Monitoring Linux networking state using netlink – Oleg Kutkov personal blog include <unistd.h> to remove the warning: implicit declaration of function ‘getpid’’ messageSolution of Warning implicit declaration of function 'getpid' in C New network interface wlx503eaa69c293, state: UP RUNNING
Therefore, at this moment, it would not define the problem as the age of the network adapters model.
A similar issue on the same card (with iwd rather than iw):https://bbs.archlinux.org/viewtopic.php?id=271971
https://wiki.archlinux.org/title/Wpa_supplicant#nl80211_driver_not_supported_on_some_hardware
Another similar issue with a Realtek card, and a partial solution:
... that second issue immediately above is due to Linux using the wrong default driver... ifconfig and iwconfig work, but iw doesn't.
"In case anyone else ends up here .. it looks like the iw command needs the driver to implement the 'cfg80211' interface, and not all of them do. "
Be sure the cfg80211 module is loaded:find /lib/modules/$(uname -r) -type f -name '*.ko*' | grep cfg80211/lib/modules/5.15.0-58-lowlatency/kernel/net/wireless/cfg80211.ko
sudo lsmod | grep cfg80211cfg80211 978944 2 rtw88_core,mac80211
... and check which driver the OS is using for your WiFi card via:lsmod | grep rtl
If that doesn't return anything, just do lsmod and search for your WiFi driver.
More information:
And a driver that uses iw commands:
Wifi driver support for rtl8188eu, rtl8188eus and rtl8188etv chips and working under the new linux kernel (5.1.x). - GitHub - quickreflex/rtl8188eus: Wifi driver support for rtl8188eu, rtl8188eus a...
1 Like
Ocka
19 April 2023 03:00
18
i may have found a bug;
iw list
the bug i get is if i use a iw command & don't clear or hit enter to Zero the terminal ( maybe) it will not run iw command.
so after any command output's, although your terminal returns to Zero, i have to hit enter then i get iw dev... etc
This is intermittent, every 2-3 times running iw after any other commands, seems to need this action.
Got me beat what else it could be.
Note: sudo is not needed
ADDED: Check you have up to date drivers/firmware, sometimes the wrong driver/etc will stop iw output's,
Sorry I didn't see your post edits mr_magoo,
@Ocka
I am looking into @Mr_Magoo post. Please, wait for my next reply.
