Sur mon portable acer timelineX 3830TG, le wifi n'est pas stable, j'ai des pertes de vitesse par moment (ça dure une à deux minutes, des fois un peu plus). Le plus flagrant sont sur les vidéos disponible sur mon serveur. Tous fonctionne bien puis d'un coup ça lague !
le kernel
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Linux portable 3.1.0-4-ARCH #1 SMP PREEMPT Mon Nov 7 23:21:44 CET 2011 i686 Intel(R) Core(TM) i5-2430M CPU @ 2.40GHz GenuineIntel GNU/Linux
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lspci | grep Wireless
03:00.0 Network controller: Atheros Communications Inc. AR9287 Wireless Network Adapter (PCI-Express) (rev 01)
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modinfo ath9k
filename: /lib/modules/3.1.0-4-ARCH/kernel/drivers/net/wireless/ath/ath9k/ath9k.ko.gz
license: Dual BSD/GPL
description: Support for Atheros 802.11n wireless LAN cards.
author: Atheros Communications
alias: platform:ar934x_wmac
alias: platform:ar933x_wmac
alias: platform:ath9k
alias: pci:v0000168Cd00000032sv*sd*bc*sc*i*
alias: pci:v0000168Cd00000030sv*sd*bc*sc*i*
alias: pci:v0000168Cd0000002Esv*sd*bc*sc*i*
alias: pci:v0000168Cd0000002Dsv*sd*bc*sc*i*
alias: pci:v0000168Cd0000002Csv*sd*bc*sc*i*
alias: pci:v0000168Cd0000002Bsv*sd*bc*sc*i*
alias: pci:v0000168Cd0000002Asv*sd*bc*sc*i*
alias: pci:v0000168Cd00000029sv*sd*bc*sc*i*
alias: pci:v0000168Cd00000027sv*sd*bc*sc*i*
alias: pci:v0000168Cd00000024sv*sd*bc*sc*i*
alias: pci:v0000168Cd00000023sv*sd*bc*sc*i*
depends: ath9k_hw,mac80211,ath9k_common,ath,cfg80211
vermagic: 3.1.0-4-ARCH SMP preempt mod_unload modversions 686
parm: debug:Debugging mask (uint)
parm: nohwcrypt:Disable hardware encryption (int)
parm: blink:Enable LED blink on activity (int)
parm: btcoex_enable:Enable wifi-BT coexistence (int)
iwconfig
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iwconfig
lo no wireless extensions.
eth0 no wireless extensions.
wlan0 IEEE 802.11bgn ESSID:"NEUF_92F8"
Mode:Managed Frequency:2.462 GHz Access Point: 00:17:33:9C:92:FC
Bit Rate=54 Mb/s Tx-Power=13 dBm
Retry long limit:7 RTS thr:off Fragment thr:off
Power Management:off
Link Quality=39/70 Signal level=-71 dBm
Rx invalid nwid:0 Rx invalid crypt:0 Rx invalid frag:0
Tx excessive retries:509 Invalid misc:22 Missed beacon:0
resolv;conf
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cat /etc/resolv.conf
# Generated by dhcpcd from wlan0
nameserver 208.67.222.222
nameserver 208.67.220.220
nameserver 192.168.1.1cat /etc/resolv.conf
# Generated by dhcpcd from wlan0
nameserver 208.67.222.222
nameserver 208.67.220.220
nameserver 192.168.1.1
# /etc/resolv.conf.tail can replace this line
# /etc/resolv.conf.tail can replace this line
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rfkill list
0: phy0: Wireless LAN
Soft blocked: no
Hard blocked: no
1: hci0: Bluetooth
Soft blocked: no
Hard blocked: no
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ping 192.168.1.1
PING 192.168.1.1 (192.168.1.1) 56(84) bytes of data.
64 bytes from 192.168.1.1: icmp_req=1 ttl=64 time=1.36 ms
64 bytes from 192.168.1.1: icmp_req=2 ttl=64 time=1.33 ms
64 bytes from 192.168.1.1: icmp_req=3 ttl=64 time=1.32 ms
64 bytes from 192.168.1.1: icmp_req=4 ttl=64 time=1.44 ms
64 bytes from 192.168.1.1: icmp_req=5 ttl=64 time=1.32 ms
64 bytes from 192.168.1.1: icmp_req=6 ttl=64 time=1.31 ms
64 bytes from 192.168.1.1: icmp_req=7 ttl=64 time=1.35 ms
64 bytes from 192.168.1.1: icmp_req=8 ttl=64 time=1.30 ms
64 bytes from 192.168.1.1: icmp_req=9 ttl=64 time=1.35 ms
64 bytes from 192.168.1.1: icmp_req=10 ttl=64 time=1.38 ms
64 bytes from 192.168.1.1: icmp_req=11 ttl=64 time=1.35 ms
64 bytes from 192.168.1.1: icmp_req=12 ttl=64 time=1.35 ms
64 bytes from 192.168.1.1: icmp_req=13 ttl=64 time=1.44 ms
64 bytes from 192.168.1.1: icmp_req=14 ttl=64 time=1.31 ms
64 bytes from 192.168.1.1: icmp_req=15 ttl=64 time=1.33 ms
64 bytes from 192.168.1.1: icmp_req=16 ttl=64 time=1.33 ms
64 bytes from 192.168.1.1: icmp_req=17 ttl=64 time=1.47 ms
64 bytes from 192.168.1.1: icmp_req=18 ttl=64 time=1.33 ms
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ping 192.168.1.1
PING 192.168.1.1 (192.168.1.1) 56(84) bytes of data.
64 bytes from 192.168.1.1: icmp_req=1 ttl=64 time=3007 ms
64 bytes from 192.168.1.1: icmp_req=2 ttl=64 time=2100 ms
64 bytes from 192.168.1.1: icmp_req=3 ttl=64 time=2638 ms
64 bytes from 192.168.1.1: icmp_req=4 ttl=64 time=1935 ms
64 bytes from 192.168.1.1: icmp_req=5 ttl=64 time=1548 ms
64 bytes from 192.168.1.1: icmp_req=6 ttl=64 time=1060 ms
64 bytes from 192.168.1.1: icmp_req=7 ttl=64 time=879 ms
64 bytes from 192.168.1.1: icmp_req=8 ttl=64 time=529 ms
64 bytes from 192.168.1.1: icmp_req=9 ttl=64 time=1848 ms
64 bytes from 192.168.1.1: icmp_req=10 ttl=64 time=1054 msping 192.168.1.1
PING 192.168.1.1 (192.168.1.1) 56(84) bytes of data.
64 bytes from 192.168.1.1: icmp_req=1 ttl=64 time=1.36 ms
64 bytes from 192.168.1.1: icmp_req=2 ttl=64 time=1.33 ms
64 bytes from 192.168.1.1: icmp_req=3 ttl=64 time=1.32 ms
64 bytes from 192.168.1.1: icmp_req=4 ttl=64 time=1.44 ms
64 bytes from 192.168.1.1: icmp_req=5 ttl=64 time=1.32 ms
64 bytes from 192.168.1.1: icmp_req=6 ttl=64 time=1.31 ms
64 bytes from 192.168.1.1: icmp_req=7 ttl=64 time=1.35 ms
64 bytes from 192.168.1.1: icmp_req=8 ttl=64 time=1.30 ms
64 bytes from 192.168.1.1: icmp_req=9 ttl=64 time=1.35 ms
64 bytes from 192.168.1.1: icmp_req=10 ttl=64 time=1.38 ms
64 bytes from 192.168.1.1: icmp_req=11 ttl=64 time=1.35 ms
64 bytes from 192.168.1.1: icmp_req=12 ttl=64 time=1.35 ms
64 bytes from 192.168.1.1: icmp_req=13 ttl=64 time=1.44 ms
64 bytes from 192.168.1.1: icmp_req=14 ttl=64 time=1.31 ms
64 bytes from 192.168.1.1: icmp_req=15 ttl=64 time=1.33 ms
64 bytes from 192.168.1.1: icmp_req=16 ttl=64 time=1.33 ms
64 bytes from 192.168.1.1: icmp_req=17 ttl=64 time=1.47 ms
64 bytes from 192.168.1.1: icmp_req=18 ttl=64 time=1.33 ms
64 bytes from 192.168.1.1: icmp_req=11 ttl=64 time=361 ms
64 bytes from 192.168.1.1: icmp_req=12 ttl=64 time=283 ms
64 bytes from 192.168.1.1: icmp_req=13 ttl=64 time=920 ms
64 bytes from 192.168.1.1: icmp_req=14 ttl=64 time=331 ms
64 bytes from 192.168.1.1: icmp_req=15 ttl=64 time=1407 ms
64 bytes from 192.168.1.1: icmp_req=16 ttl=64 time=574 ms
64 bytes from 192.168.1.1: icmp_req=17 ttl=64 time=1868 ms
64 bytes from 192.168.1.1: icmp_req=18 ttl=64 time=3796 ms
64 bytes from 192.168.1.1: icmp_req=19 ttl=64 time=3925 ms
j'ai fouillé sur le net mais j'ai rien trouvé de valide pour moi?
Si quelqu'un à une idée car la je sèche! le problème revient par intermitence toutes les deux minutes ou tranquille pendant 5 à 10 minutes ?