[wifi] plus de détection de réseau
Publié : ven. 15 avr. 2011, 10:53
Salut
un de mes pc vient de décider de ne plus se connecter en wifi, l'install était fonctionnelle depuis plus d'un an, et du jour au lendemain, plus de réseau.
environnement lxde + wicd
wicd m'affiche «aucun réseau sans fil détecté»
tout semble fonctionnel au niveau config
sur un laptop dans la même pièce :
mon rc.conf
j'ai toujours un peu de mal avec ces histoires de réseau, je compte sur vous 
un de mes pc vient de décider de ne plus se connecter en wifi, l'install était fonctionnelle depuis plus d'un an, et du jour au lendemain, plus de réseau.
environnement lxde + wicd
wicd m'affiche «aucun réseau sans fil détecté»
tout semble fonctionnel au niveau config
Code : Tout sélectionner
05:00.0 Network controller: Realtek Semiconductor Co., Ltd. RTL8187SE Wireless LAN Controller (rev 22)
Subsystem: Realtek Semiconductor Co., Ltd. RTL8187SE Wireless LAN Controller
Flags: bus master, fast devsel, latency 0, IRQ 19
I/O ports at e800 [size=256]
Memory at febfc000 (32-bit, non-prefetchable) [size=16K]
Capabilities: <access denied>
Kernel driver in use: r8180
Kernel modules: r8187se
Code : Tout sélectionner
ifconfig -a
eth0 Link encap:Ethernet HWaddr 00:E0:4C:68:29:D6
inet addr:10.0.0.101 Bcast:10.0.0.255 Mask:255.255.255.0
inet6 addr: fe80::2e0:4cff:fe68:29d6/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:7316 errors:0 dropped:576 overruns:0 frame:0
TX packets:3685 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:526671 (514.3 Kb) TX bytes:1090886 (1.0 Mb)
Interrupt:41 Base address:0x2000
lo Link encap:Local Loopback
inet addr:127.0.0.1 Mask:255.0.0.0
inet6 addr: ::1/128 Scope:Host
UP LOOPBACK RUNNING MTU:16436 Metric:1
RX packets:75 errors:0 dropped:0 overruns:0 frame:0
TX packets:75 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:7695 (7.5 Kb) TX bytes:7695 (7.5 Kb)
wlan0 Link encap:Ethernet HWaddr 00:18:1A:0D:7B:E6
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:0 errors:0 dropped:0 overruns:0 frame:0
TX packets:216 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:0 (0.0 b) TX bytes:9072 (8.8 Kb)
Interrupt:19 Memory:f8738000-f8738100
Code : Tout sélectionner
iwconfig
lo no wireless extensions.
wlan0 802.11b/g Mode:Managed Frequency=2.422 GHz
Access Point: Not-Associated Bit Rate:11 Mb/s
Retry:on RTS thr:off Fragment thr:off
Power Management:off
Link Quality=0/100 Signal level=0 dBm Noise level=0 dBm
Rx invalid nwid:0 Rx invalid crypt:0 Rx invalid frag:0
Tx excessive retries:0 Invalid misc:0 Missed beacon:0
eth0 no wireless extensions.
Code : Tout sélectionner
iwlist wlan0 scanning
wlan0 No scan results
Code : Tout sélectionner
iwlist wlan0 scanning
wlan0 Scan completed :
Cell 01 - Address: 00:00:10:00:00:00
Channel:3
Frequency:2.422 GHz (Channel 3)
Quality=55/70 Signal level=-55 dBm
Encryption key:on
ESSID:"xxxxxxxxx"
Bit Rates:1 Mb/s; 2 Mb/s; 5.5 Mb/s; 11 Mb/s; 18 Mb/s
24 Mb/s; 36 Mb/s; 54 Mb/s
Bit Rates:6 Mb/s; 9 Mb/s; 12 Mb/s; 48 Mb/s
Mode:Master
Extra:tsf=000003bb70e081d3
Extra: Last beacon: 32020ms ago
IE: Unknown: 00097265676D6172696F6E
IE: Unknown: 010882848B9624B0486C
IE: Unknown: 030103
IE: Unknown: 2A0100
IE: Unknown: 2F0100
IE: IEEE 802.11i/WPA2 Version 1
Group Cipher : CCMP
Pairwise Ciphers (1) : CCMP
Authentication Suites (1) : PSK
IE: Unknown: 32048C129860
IE: Unknown: DD06001018020004
Code : Tout sélectionner
# /etc/rc.conf - Main Configuration for Arch Linux
#
# -----------------------------------------------------------------------
# LOCALIZATION
# -----------------------------------------------------------------------
#
# LOCALE: available languages can be listed with the 'locale -a' command
# HARDWARECLOCK: set to "UTC" or "localtime", any other value will result
# in the hardware clock being left untouched (useful for virtualization)
# TIMEZONE: timezones are found in /usr/share/zoneinfo
# KEYMAP: keymaps are found in /usr/share/kbd/keymaps
# CONSOLEFONT: found in /usr/share/kbd/consolefonts (only needed for non-US)
# CONSOLEMAP: found in /usr/share/kbd/consoletrans
# USECOLOR: use ANSI color sequences in startup messages
#
LOCALE="fr_FR.UTF-8"
HARDWARECLOCK="localtime"
TIMEZONE="Europe/Paris"
KEYMAP="fr-pc"
CONSOLEFONT=
CONSOLEMAP=
USECOLOR="yes"
# -----------------------------------------------------------------------
# HARDWARE
# -----------------------------------------------------------------------
#
# MOD_AUTOLOAD: Allow autoloading of modules at boot and when needed
# MOD_BLACKLIST: Prevent udev from loading these modules
# MODULES: Modules to load at boot-up. Prefix with a ! to blacklist.
#
# NOTE: Use of 'MOD_BLACKLIST' is deprecated. Please use ! in the MODULES array.
#
MOD_AUTOLOAD="yes"
#MOD_BLACKLIST=() #deprecated
MODULES=()
# Scan for LVM volume groups at startup, required if you use LVM
USELVM="no"
# -----------------------------------------------------------------------
# NETWORKING
# -----------------------------------------------------------------------
#
# HOSTNAME: Hostname of machine. Should also be put in /etc/hosts
#
HOSTNAME="mediabox"
# Use 'ifconfig -a' or 'ls /sys/class/net/' to see all available interfaces.
#
# Interfaces to start at boot-up (in this order)
# Declare each interface then list in INTERFACES
# - prefix an entry in INTERFACES with a ! to disable it
# - no hyphens in your interface names - Bash doesn't like it
#
# DHCP: Set your interface to "dhcp" (eth0="dhcp")
# Wireless: See network profiles below
#
#Static IP example
#eth0="eth0 10.0.0.30 netmask 255.255.255.0 broadcast 10.0.0.255"
#eth0="dhcp"
INTERFACES=(!eth0 !wlan0)
# Routes to start at boot-up (in this order)
# Declare each route then list in ROUTES
# - prefix an entry in ROUTES with a ! to disable it
#
#gateway="default gw 10.0.0.254"
#ROUTES=(gateway)
# Enable these network profiles at boot-up. These are only useful
# if you happen to need multiple network configurations (ie, laptop users)
# - set to 'menu' to present a menu during boot-up (dialog package required)
# - prefix an entry with a ! to disable it
#
# Network profiles are found in /etc/network.d
#
# This now requires the netcfg package
#
#NETWORKS=(main)
# -----------------------------------------------------------------------
# DAEMONS
# -----------------------------------------------------------------------
#
# Daemons to start at boot-up (in this order)
# - prefix a daemon with a ! to disable it
# - prefix a daemon with a @ to start it up in the background
#
DAEMONS=(syslog-ng crond hal sshd @wicd mpd mpdscribble)
