wifi keeps disconnecting

nightwishhh · 2016-06-07 01:04:48

hi all , first of all im kinda new to arch linux , and this is my first post on forum

so , my wifi keeps disconnecting randomly, it seems that the problem is with WEP , couse if i connect to wpa/wpa2 protected network it will not dc, but after some time its just gonna freez , idk why , i need to plug out my usb wifi and plug it in again to get connecton, another wierd thing is that the wifi icon sometimes is showing that thers no wifi , but if i look in "wavemon" im connected and its working.. but somethins i cant get the menu of available networks when i click on icon, and it will say im not connected , but i am xd

i didnt try more then one WEP networks, but in kali linux on live usb that same network is working without disconnecting . i cant get full 5 mins of working wifi ...

ill try to post as much info i can, if u need something , just tell me

its arch linux with XFCE4 DE

Kernel: x86_64 Linux 4.4.11-1-lts

wifi : TP LINK TL-WN722N

i guess this is something about drivers( like i said , im new xd) :
PHY Interface Driver Chipset

phy3 wlp0s2f1u2 ath9k_htc Atheros Communications, Inc. AR9271 802.11n

and im using network manager

thanks , and sorry for bad eng

Last edited by nightwishhh (2016-06-07 01:07:14)

ewaller · 2016-06-07 03:20:11

I suspect you have more than one thing trying to control the network. What is the output of systemctl list-units --type service --no-pager

nightwishhh · 2016-06-07 13:15:22

thanks for reply
this is the output :
nightwish@arch ~]$ systemctl list-units --type service --no-pager
UNIT LOAD ACTIVE SUB DESCRIPTION
alsa-restore.service loaded active exited Save/Restore Sound Card Stat
dbus.service loaded active running D-Bus System Message Bus
kmod-static-nodes.service loaded active exited Create list of required stat
lightdm.service loaded active running Light Display Manager
NetworkManager-dispatcher.service loaded active running Network Manager Script Dispa
NetworkManager.service loaded active running Network Manager
pamac.service loaded active running Pamac
polkit.service loaded active running Authorization Manager
rtkit-daemon.service loaded active running RealtimeKit Scheduling Polic
systemd-binfmt.service loaded active exited Set Up Additional Binary For
systemd-journal-flush.service loaded active exited Flush Journal to Persistent
systemd-journald.service loaded active running Journal Service
systemd-logind.service loaded active running Login Service
systemd-random-seed.service loaded active exited Load/Save Random Seed
● systemd-remount-fs.service loaded failed failed Remount Root and Kernel File
systemd-sysctl.service loaded active exited Apply Kernel Variables
systemd-tmpfiles-setup-dev.service loaded active exited Create Static Device Nodes i
systemd-tmpfiles-setup.service loaded active exited Create Volatile Files and Di
systemd-udev-trigger.service loaded active exited udev Coldplug all Devices
systemd-udevd.service loaded active running udev Kernel Device Manager
systemd-update-utmp.service loaded active exited Update UTMP about System Boo
systemd-user-sessions.service loaded active exited Permit User Sessions
systemd-vconsole-setup.service loaded active exited Setup Virtual Console
udisks2.service loaded active running Disk Manager
upower.service loaded active running Daemon for power management
user@1000.service loaded active running User Manager for UID 1000
wpa_supplicant.service loaded active running WPA supplicant

LOAD = Reflects whether the unit definition was properly loaded.
ACTIVE = The high-level unit activation state, i.e. generalization of SUB.
SUB = The low-level unit activation state, values depend on unit type.

27 loaded units listed. Pass --all to see loaded but inactive units, too.
To show all installed unit files use 'systemctl list-unit-files'.

ewaller · 2016-06-07 14:12:58

I think the problem is the wpa_supplicant.service. But, I always screw this up -- I don't remember if NetworkManager starts wpa_supplicant.service, or not. Regardless, wpa_supplicnat.service should not be enabled (so it does not start by itself).

Check that find /etc/systemd | grep wpa returns nothing. If it does return wpa_supplicant.service, then disable that service.

nightwishhh · 2016-06-07 17:19:11

maybie i got this command wrong , but this is what i did :

[nightwish@arch systemd]$ find /etc/systemd | grep wpa
[nightwish@arch systemd]$

thers no output for that command

when i do systemctl list-units --type service --no-pager

wpa_supplicant.service is still there
wpa_supplicant.service loaded active running WPA supplicant

i did systemctl disable [tab] [tab]

and thers no wpa_supplicant.service , this is what i got there :
autovt@.service
dbus-org.freedesktop.NetworkManager.service
dbus-org.freedesktop.nm-dispatcher.service
display-manager.service
getty@.service
lightdm.service
NetworkManager-dispatcher.service
NetworkManager.service
org.cups.cupsd.path
org.cups.cupsd.service
org.cups.cupsd.socket
remote-fs.target

and systemctl disable wpa_supplicant.service does nothing i think

[root@arch systemd]# systemctl disable wpa_supplicant.service
[root@arch systemd]#

i tried systemctl list-units --type service --no-pager again
and wpa_supplicant.service is still active

maybie i used wrong command for disableing it , i dont rly know much about terminal

ewaller · 2016-06-07 17:38:47

No, you are good. That tells me NetworkManager is stating wpa_supplicant.
Your configuration looks sane.

nightwishhh · 2016-06-07 20:19:28

so thers nothing i can do to fix it ?

ewaller · 2016-06-07 20:31:24

I did not say that. The most common culprit is multiple things trying to control the network hardware at the same time. We have eliminated that.
Atheros is one of the problematic brands when it comes to Linux. There may be an alternate driver, or some parameter tweak; I don't really know, I don't have Atheros hardware.

You might try this: https://wiki.archlinux.org/index.php/Wi … onnections
ot this: https://wiki.archlinux.org/index.php/Wi … tion#ath9k

Or, someone with your hardware may happen along with some helpful advice.

nightwishhh · 2016-06-08 01:43:39

oh ok , thanks for the links it looks like i found the problem, in case one :
Cause #1
If dmesg says wlan0: deauthenticating from MAC by local choice (reason=3) and you lose your Wi-Fi connection, it is likely that you have a bit too aggressive power-saving on your Wi-Fi card[1]. Try disabling the wireless card's power saving features (specify off instead of on).
If your card does not support enabling/disabling power save mode, check the BIOS for power management options. Disabling PCI-Express power management in the BIOS of a Lenovo W520 resolved this issue.

i did the dmseg in terminal and thers to much info, but i got a look at it, its look like is all the same, except in few lines , but i think i dissconneted my wifi in those cases , so the output looks like this :
1624.385550] ath9k_htc 1-2:1.0 wlp0s2f1u2: disabling VHT as WMM/QoS is not supported by the AP
[ 1624.393034] wlp0s2f1u2: associate with e8:39:df:82:cc:b2 (try 1/3)
[ 1624.400135] wlp0s2f1u2: RX AssocResp from e8:39:df:82:cc:b2 (capab=0x411 status=0 aid=1)
[ 1624.406202] wlp0s2f1u2: associated
[ 1670.052649] wlp0s2f1u2: deauthenticating from e8:39:df:82:cc:b2 by local choice (Reason: 3=DEAUTH_LEAVING)
[ 1671.110604] wlp0s2f1u2: authenticate with e8:39:df:82:cc:b2
[ 1671.314832] wlp0s2f1u2: send auth to e8:39:df:82:cc:b2 (try 1/3)
[ 1671.323856] wlp0s2f1u2: authenticated

there it is : [ 1670.052649] wlp0s2f1u2: deauthenticating from e8:39:df:82:cc:b2 by local choice (Reason: 3=DEAUTH_LEAVING) it looks like i have aggressive power-saving mod, so i would appreciate if u can tell me how to turn it off .
i checked this link : https://wiki.archlinux.org/index.php/Po … interfaces but i dont rly get it , and i dont want to screw it up even more

thank you for your help, i rly appreciate it

Last edited by nightwishhh (2016-06-08 01:48:33)

ewaller · 2016-06-08 01:48:25

Try this. It won't hurt anything or do anything permanent.

sudo iw dev wlp0s2f1u2 set power_save off

If that works, then let us write a udev rule as suggested by your link

nightwishhh · 2016-06-08 01:54:52

ok i did it.
i will edit my post in few minutes, for now its working fine

Edit : so right after the command, maybie 10 sec later it did dc but it reconnected after 2 sec even less, till now just one more , but its a lot better then before for sure

Edit 2 : one more , it looks like one per 5 minuts xd i can live with that xd

Last edited by nightwishhh (2016-06-08 02:10:21)

Arch Linux

#1 2016-06-07 01:04:48

wifi keeps disconnecting

#2 2016-06-07 03:20:11

Re: wifi keeps disconnecting

#3 2016-06-07 13:15:22

Re: wifi keeps disconnecting

#4 2016-06-07 14:12:58

Re: wifi keeps disconnecting

#5 2016-06-07 17:19:11

Re: wifi keeps disconnecting

#6 2016-06-07 17:38:47

Re: wifi keeps disconnecting

#7 2016-06-07 20:19:28

Re: wifi keeps disconnecting

#8 2016-06-07 20:31:24

Re: wifi keeps disconnecting

#9 2016-06-08 01:43:39

Re: wifi keeps disconnecting

#10 2016-06-08 01:48:25

Re: wifi keeps disconnecting

#11 2016-06-08 01:54:52

Re: wifi keeps disconnecting

Board footer