Connecté sans fil mais pas de connexion Internet (Ubuntu 12.04)
J'utilise le même réseau pendant 2 jours et tout était normal. Cependant, aujourd'hui, même si cela me montre connecté au réseau, je n'ai pas de connexion Internet. Si j'utilise un câble Ethernet au lieu d'un réseau sans fil, je peux toujours me connecter à Internet. Mes amis peuvent également se connecter au réseau sans fil et obtenir une connexion Internet. Je n'ai rien mis à jour ou installé depuis hier. Par conséquent, je n'ai aucune idée pourquoi cela se produit. Voici quelques informations sur ma connexion:
Je serai reconnaissant à toute sorte d'aide.
root@ghostrider:/etc/resolvconf# ping 127.0.0.1
PING 127.0.0.1 (127.0.0.1) 56(84) bytes of data.
64 bytes from 127.0.0.1: icmp_req=1 ttl=64 time=0.042 ms
64 bytes from 127.0.0.1: icmp_req=2 ttl=64 time=0.023 ms
64 bytes from 127.0.0.1: icmp_req=3 ttl=64 time=0.036 ms
64 bytes from 127.0.0.1: icmp_req=4 ttl=64 time=0.040 ms
^C
--- 127.0.0.1 ping statistics ---
4 packets transmitted, 4 received, 0% packet loss, time 2998ms
rtt min/avg/max/mdev = 0.023/0.035/0.042/0.008 ms
root@ghostrider:/etc/resolvconf# ping 192.168.1.3
PING 192.168.1.3 (192.168.1.3) 56(84) bytes of data.
^C
--- 192.168.1.3 ping statistics ---
19 packets transmitted, 0 received, 100% packet loss, time 18143ms
root@ghostrider:/etc/resolvconf# ping 8.8.8.8
PING 8.8.8.8 (8.8.8.8) 56(84) bytes of data.
^C
--- 8.8.8.8 ping statistics ---
11 packets transmitted, 0 received, 100% packet loss, time 10079ms
root@ghostrider:/etc/resolvconf# cat /etc/lsb-release; uname -a
DISTRIB_ID=Ubuntu
DISTRIB_RELEASE=12.04
DISTRIB_CODENAME=precise
DISTRIB_DESCRIPTION="Ubuntu 12.04 LTS"
Linux ghostrider 3.2.0-24-generic-pae #39-Ubuntu SMP Mon May 21 18:54:21 UTC 2012 i686 i686 i386 GNU/Linux
root@ghostrider:/etc/resolvconf# lspci -nnk | grep -iA2 net
03:00.0 Ethernet controller [0200]: Atheros Communications Inc. AR8131 Gigabit Ethernet [1969:1063] (rev c0)
Subsystem: Lenovo Device [17aa:3956]
Kernel driver in use: atl1c
--
04:00.0 Network controller [0280]: Broadcom Corporation BCM4313 802.11b/g/n Wireless LAN Controller [14e4:4727] (rev 01)
Subsystem: Broadcom Corporation Device [14e4:0510]
Kernel driver in use: wl
root@ghostrider:/etc/resolvconf# lsusb
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 001 Device 002: ID 8087:0020 Intel Corp. Integrated Rate Matching Hub
Bus 002 Device 002: ID 8087:0020 Intel Corp. Integrated Rate Matching Hub
Bus 001 Device 007: ID 0489:e00d Foxconn / Hon Hai
Bus 001 Device 004: ID 1c7a:0801 LighTuning Technology Inc. Fingerprint Reader
Bus 001 Device 005: ID 064e:f219 Suyin Corp.
Bus 002 Device 010: ID 0424:2412 Standard Microsystems Corp.
Bus 002 Device 004: ID 046d:c52b Logitech, Inc. Unifying Receiver
Bus 002 Device 011: ID 0403:6010 Future Technology Devices International, Ltd FT2232C Dual USB-UART/FIFO IC
root@ghostrider:/etc/resolvconf# iwconfig
lo no wireless extensions.
eth1 IEEE 802.11 ESSID:"PoliTekno"
Mode:Managed Frequency:2.462 GHz Access Point: 00:16:E3:40:C3:E4
Bit Rate=54 Mb/s Tx-Power:24 dBm
Retry min limit:7 RTS thr:off Fragment thr:off
Power Management:off
Link Quality=5/5 Signal level=-52 dBm Noise level=-97 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.
root@ghostrider:/etc/resolvconf# rfkill list all
0: brcmwl-0: Wireless LAN
Soft blocked: no
Hard blocked: no
1: ideapad_wlan: Wireless LAN
Soft blocked: no
Hard blocked: no
2: ideapad_bluetooth: Bluetooth
Soft blocked: no
Hard blocked: no
5: hci0: Bluetooth
Soft blocked: no
Hard blocked: no
root@ghostrider:/etc/resolvconf# lsmod
Module Size Used by
nls_iso8859_1 12617 0
nls_cp437 12751 0
vfat 17308 0
fat 55605 1 vfat
usb_storage 39646 0
uas 17828 0
snd_hda_codec_realtek 174055 1
rfcomm 38139 12
parport_pc 32114 0
ppdev 12849 0
bnep 17830 2
joydev 17393 0
ftdi_sio 35859 1
usbserial 37173 3 ftdi_sio
snd_hda_intel 32765 3
snd_hda_codec 109562 2 snd_hda_codec_realtek,snd_hda_intel
snd_hwdep 13276 1 snd_hda_codec
Acer_wmi 23612 0
hid_logitech_dj 18177 0
snd_pcm 80845 2 snd_hda_intel,snd_hda_codec
uvcvideo 67203 0
btusb 17912 2
snd_seq_midi 13132 0
videodev 86588 1 uvcvideo
bluetooth 158438 23 rfcomm,bnep,btusb
psmouse 72919 0
usbhid 41906 1 hid_logitech_dj
snd_rawmidi 25424 1 snd_seq_midi
intel_ips 17753 0
serio_raw 13027 0
root@ghostrider:/etc/resolvconf# ping 127.0.0.1
PING 127.0.0.1 (127.0.0.1) 56(84) bytes of data.
64 bytes from 127.0.0.1: icmp_req=1 ttl=64 time=0.042 ms
64 bytes from 127.0.0.1: icmp_req=2 ttl=64 time=0.023 ms
64 bytes from 127.0.0.1: icmp_req=3 ttl=64 time=0.036 ms
64 bytes from 127.0.0.1: icmp_req=4 ttl=64 time=0.040 ms
^C
--- 127.0.0.1 ping statistics ---
4 packets transmitted, 4 received, 0% packet loss, time 2998ms
rtt min/avg/max/mdev = 0.023/0.035/0.042/0.008 ms
root@ghostrider:/etc/resolvconf# ping 192.168.1.3
PING 192.168.1.3 (192.168.1.3) 56(84) bytes of data.
^C
--- 192.168.1.3 ping statistics ---
19 packets transmitted, 0 received, 100% packet loss, time 18143ms
root@ghostrider:/etc/resolvconf# ping 8.8.8.8
PING 8.8.8.8 (8.8.8.8) 56(84) bytes of data.
^C
--- 8.8.8.8 ping statistics ---
11 packets transmitted, 0 received, 100% packet loss, time 10079ms
root@ghostrider:/etc/resolvconf# cat /etc/lsb-release; uname -a
DISTRIB_ID=Ubuntu
DISTRIB_RELEASE=12.04
DISTRIB_CODENAME=precise
DISTRIB_DESCRIPTION="Ubuntu 12.04 LTS"
Linux ghostrider 3.2.0-24-generic-pae #39-Ubuntu SMP Mon May 21 18:54:21 UTC 2012 i686 i686 i386 GNU/Linux
root@ghostrider:/etc/resolvconf# lspci -nnk | grep -iA2 net
03:00.0 Ethernet controller [0200]: Atheros Communications Inc. AR8131 Gigabit Ethernet [1969:1063] (rev c0)
Subsystem: Lenovo Device [17aa:3956]
Kernel driver in use: atl1c
--
04:00.0 Network controller [0280]: Broadcom Corporation BCM4313 802.11b/g/n Wireless LAN Controller [14e4:4727] (rev 01)
Subsystem: Broadcom Corporation Device [14e4:0510]
Kernel driver in use: wl
root@ghostrider:/etc/resolvconf# lsusb
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 001 Device 002: ID 8087:0020 Intel Corp. Integrated Rate Matching Hub
Bus 002 Device 002: ID 8087:0020 Intel Corp. Integrated Rate Matching Hub
Bus 001 Device 007: ID 0489:e00d Foxconn / Hon Hai
Bus 001 Device 004: ID 1c7a:0801 LighTuning Technology Inc. Fingerprint Reader
Bus 001 Device 005: ID 064e:f219 Suyin Corp.
Bus 002 Device 010: ID 0424:2412 Standard Microsystems Corp.
Bus 002 Device 004: ID 046d:c52b Logitech, Inc. Unifying Receiver
Bus 002 Device 011: ID 0403:6010 Future Technology Devices International, Ltd FT2232C Dual USB-UART/FIFO IC
root@ghostrider:/etc/resolvconf# iwconfig
lo no wireless extensions.
eth1 IEEE 802.11 ESSID:"PoliTekno"
Mode:Managed Frequency:2.462 GHz Access Point: 00:16:E3:40:C3:E4
Bit Rate=54 Mb/s Tx-Power:24 dBm
Retry min limit:7 RTS thr:off Fragment thr:off
Power Management:off
Link Quality=5/5 Signal level=-52 dBm Noise level=-97 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.
root@ghostrider:/etc/resolvconf# rfkill list all
0: brcmwl-0: Wireless LAN
Soft blocked: no
Hard blocked: no
1: ideapad_wlan: Wireless LAN
Soft blocked: no
Hard blocked: no
2: ideapad_bluetooth: Bluetooth
Soft blocked: no
Hard blocked: no
5: hci0: Bluetooth
Soft blocked: no
Hard blocked: no
root@ghostrider:/etc/resolvconf# lsmod
Module Size Used by
nls_iso8859_1 12617 0
nls_cp437 12751 0
vfat 17308 0
fat 55605 1 vfat
usb_storage 39646 0
uas 17828 0
snd_hda_codec_realtek 174055 1
rfcomm 38139 12
parport_pc 32114 0
ppdev 12849 0
bnep 17830 2
joydev 17393 0
ftdi_sio 35859 1
usbserial 37173 3 ftdi_sio
snd_hda_intel 32765 3
snd_hda_codec 109562 2 snd_hda_codec_realtek,snd_hda_intel
snd_hwdep 13276 1 snd_hda_codec
Acer_wmi 23612 0
hid_logitech_dj 18177 0
snd_pcm 80845 2 snd_hda_intel,snd_hda_codec
uvcvideo 67203 0
btusb 17912 2
snd_seq_midi 13132 0
videodev 86588 1 uvcvideo
bluetooth 158438 23 rfcomm,bnep,btusb
psmouse 72919 0
usbhid 41906 1 hid_logitech_dj
snd_rawmidi 25424 1 snd_seq_midi
intel_ips 17753 0
serio_raw 13027 0
hid 77367 2 hid_logitech_dj,usbhid
ideapad_laptop 17890 0
sparse_keymap 13658 2 Acer_wmi,ideapad_laptop
lib80211_crypt_tkip 17275 0
snd_seq_midi_event 14475 1 snd_seq_midi
snd_seq 51567 2 snd_seq_midi,snd_seq_midi_event
wl 2646601 0
wmi 18744 1 Acer_wmi
i915 414672 3
drm_kms_helper 45466 1 i915
snd_timer 28931 2 snd_pcm,snd_seq
mac_hid 13077 0
snd_seq_device 14172 3 snd_seq_midi,snd_rawmidi,snd_seq
lib80211 14040 2 lib80211_crypt_tkip,wl
drm 197692 4 i915,drm_kms_helper
i2c_algo_bit 13199 1 i915
snd 62064 15 snd_hda_codec_realtek,snd_hda_intel,snd_hda_codec,snd_hwdep,snd_pcm,snd_rawmidi,snd_se q,snd_timer,snd_seq_device
video 19068 1 i915
mei 36570 0
soundcore 14635 1 snd
snd_page_alloc 14108 2 snd_hda_intel,snd_pcm
lp 17455 0
parport 40930 3 parport_pc,ppdev,lp
atl1c 36718 0
root@ghostrider:/etc/resolvconf# nm-tool
NetworkManager Tool
State: connected (global)
- Device: eth1 [PoliTekno] ----------------------------------------------------
Type: 802.11 WiFi
Driver: wl
State: connected
Default: yes
HW Address: AC:81:12:7F:6B:B2
Capabilities:
Speed: 54 Mb/s
Wireless Properties
WEP Encryption: yes
WPA Encryption: yes
WPA2 Encryption: yes
Wireless Access Points (* = current AP)
CnDStudios: Infra, 00:12:BF:3F:0A:8A, Freq 2412 MHz, Rate 54 Mb/s, Strength 85 WPA
AIR_TIES: Infra, 00:1C:A8:6E:84:32, Freq 2462 MHz, Rate 54 Mb/s, Strength 72 WPA2
VKSS: Infra, 00:E0:4D:01:0D:47, Freq 2452 MHz, Rate 54 Mb/s, Strength 62 WPA2
PROGEDA: Infra, 00:1A:2A:60:BF:61, Freq 2462 MHz, Rate 54 Mb/s, Strength 47 WPA
MobilAtolye: Infra, 72:2B:C1:65:75:3C, Freq 2422 MHz, Rate 54 Mb/s, Strength 35 WPA WPA2
AIRTIES_WAR-141: Infra, 00:1C:A8:AB:AA:48, Freq 2422 MHz, Rate 54 Mb/s, Strength 35 WPA WPA2
tilda_biri_yeni: Infra, 54:E6:FC:B0:3C:E9, Freq 2437 MHz, Rate 0 Mb/s, Strength 34 WEP
*PoliTekno: Infra, 00:16:E3:40:C3:E4, Freq 2462 MHz, Rate 54 Mb/s, Strength 100 WPA2
AIRTIES_RJY: Infra, 00:1A:2A:BD:85:16, Freq 2462 MHz, Rate 54 Mb/s, Strength 55 WEP
IPv4 Settings:
Address: 0.0.0.0
Prefix: 24 (255.255.255.0)
Gateway: 192.168.1.1
DNS: 192.168.1.1
- Device: eth0 -----------------------------------------------------------------
Type: Wired
Driver: atl1c
State: unavailable
Default: no
HW Address: F0:DE:F1:6C:90:65
Capabilities:
Carrier Detect: yes
Speed: 100 Mb/s
Wired Properties
Carrier: off
root@ghostrider:/etc/resolvconf# Sudo iwlist scan
lo Interface doesn't support scanning.
eth1 Scan completed :
Cell 01 - Address: 00:16:E3:40:C3:E4
ESSID:"PoliTekno"
Mode:Managed
Frequency:2.462 GHz (Channel 11)
Quality:5/5 Signal level:-48 dBm Noise level:-98 dBm
IE: IEEE 802.11i/WPA2 Version 1
Group Cipher : CCMP
Pairwise Ciphers (1) : CCMP
Authentication Suites (1) : PSK
Encryption key:on
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; 6 Mb/s; 9 Mb/s
12 Mb/s; 48 Mb/s
Cell 02 - Address: 00:E0:4D:01:0D:47
ESSID:"VKSS"
Mode:Managed
Frequency:2.452 GHz (Channel 9)
Quality:4/5 Signal level:-64 dBm Noise level:-98 dBm
IE: IEEE 802.11i/WPA2 Version 1
Group Cipher : CCMP
Pairwise Ciphers (1) : CCMP
Authentication Suites (1) : PSK
Encryption key:on
Bit Rates:1 Mb/s; 2 Mb/s; 5.5 Mb/s; 11 Mb/s; 6 Mb/s
9 Mb/s; 12 Mb/s; 18 Mb/s; 24 Mb/s; 36 Mb/s
48 Mb/s; 54 Mb/s
Cell 03 - Address: 00:1C:A8:AB:AA:48
ESSID:"AIRTIES_WAR-141"
Mode:Managed
Frequency:2.422 GHz (Channel 3)
Quality:2/5 Signal level:-77 dBm Noise level:-95 dBm
IE: IEEE 802.11i/WPA2 Version 1
Group Cipher : TKIP
Pairwise Ciphers (2) : CCMP TKIP
Authentication Suites (1) : PSK
IE: Unknown: DDB20050F204104A0001101049001E007FC5100018DE7CF0D8B70223A62711C18926AC290E30303030303139631044000102103B0001031047001076B31BC241E953CB99C3872554425A28102100194169725469657320576972656C657373204E6574776F726B73102300074169723534343010240008312E322E302E31321042000F4154303939313131383030323832351054000800060050F20400011011000741697235343430100800020084103C000103
IE: WPA Version 1
Group Cipher : TKIP
Pairwise Ciphers (2) : CCMP TKIP
Authentication Suites (1) : PSK
Encryption key:on
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; 6 Mb/s; 9 Mb/s
12 Mb/s; 48 Mb/s
Cell 04 - Address: 72:2B:C1:65:75:3C
ESSID:"MobilAtolye"
Mode:Managed
Frequency:2.422 GHz (Channel 3)
Quality:2/5 Signal level:-78 dBm Noise level:-92 dBm
IE: IEEE 802.11i/WPA2 Version 1
Group Cipher : TKIP
Pairwise Ciphers (2) : TKIP CCMP
Authentication Suites (1) : PSK
IE: Unknown: DDA20050F204104A0001101044000102103B00010310470010BC329E001DD811B28601722BC165753C1021001D48756177656920546563686E6F6C6F6769657320436F2E2C204C74642E1023001C48756177656920576972656C6573732041636365737320506F696E74102400065254323836301042000831323334353637381054000800060050F204000110110009487561776569415053100800020084103C000100
IE: WPA Version 1
Group Cipher : TKIP
Pairwise Ciphers (2) : TKIP CCMP
Authentication Suites (1) : PSK
Encryption key:on
Bit Rates:1 Mb/s; 2 Mb/s; 5.5 Mb/s; 11 Mb/s; 9 Mb/s
18 Mb/s; 36 Mb/s; 54 Mb/s; 6 Mb/s; 12 Mb/s
24 Mb/s; 48 Mb/s
Cell 05 - Address: 00:12:BF:3F:0A:8A
ESSID:"CnDStudios"
Mode:Managed
Frequency:2.412 GHz (Channel 1)
Quality:5/5 Signal level:-47 dBm Noise level:-95 dBm
IE: WPA Version 1
Group Cipher : TKIP
Pairwise Ciphers (1) : TKIP
Authentication Suites (1) : PSK
Encryption key:on
Bit Rates:1 Mb/s; 2 Mb/s; 5.5 Mb/s; 11 Mb/s; 22 Mb/s
6 Mb/s; 9 Mb/s; 12 Mb/s; 18 Mb/s; 24 Mb/s
36 Mb/s; 48 Mb/s; 54 Mb/s
Cell 06 - Address: 00:1C:A8:6E:84:32
ESSID:"AIR_TIES"
Mode:Managed
Frequency:2.462 GHz (Channel 11)
Quality:5/5 Signal level:-56 dBm Noise level:-98 dBm
IE: IEEE 802.11i/WPA2 Version 1
Group Cipher : CCMP
Pairwise Ciphers (1) : CCMP
Authentication Suites (1) : PSK
Encryption key:on
Bit Rates:1 Mb/s; 2 Mb/s; 5.5 Mb/s; 11 Mb/s; 22 Mb/s
6 Mb/s; 9 Mb/s; 12 Mb/s; 18 Mb/s; 24 Mb/s
36 Mb/s; 48 Mb/s; 54 Mb/s
Cell 07 - Address: 54:E6:FC:B0:3C:E9
ESSID:"tilda_biri_yeni"
Mode:Managed
Frequency:2.437 GHz (Channel 6)
Quality:1/5 Signal level:-85 dBm Noise level:-99 dBm
Encryption key:on
Bit Rates:1 Mb/s; 2 Mb/s; 5.5 Mb/s; 11 Mb/s; 6 Mb/s
12 Mb/s; 24 Mb/s; 36 Mb/s; 9 Mb/s; 18 Mb/s
48 Mb/s; 54 Mb/s
Cell 08 - Address: 18:28:61:16:57:C3
ESSID:"obilet"
Mode:Managed
Frequency:2.437 GHz (Channel 6)
Quality:1/5 Signal level:-88 dBm Noise level:-99 dBm
IE: IEEE 802.11i/WPA2 Version 1
Group Cipher : TKIP
Pairwise Ciphers (2) : CCMP TKIP
Authentication Suites (1) : PSK
IE: WPA Version 1
Group Cipher : TKIP
Pairwise Ciphers (2) : CCMP TKIP
Authentication Suites (1) : PSK
Encryption key:on
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; 6 Mb/s; 9 Mb/s
12 Mb/s; 48 Mb/s
Cell 09 - Address: 00:1A:2A:60:BF:61
ESSID:"PROGEDA"
Mode:Managed
Frequency:2.462 GHz (Channel 11)
Quality:2/5 Signal level:-75 dBm Noise level:-98 dBm
IE: WPA Version 1
Group Cipher : TKIP
Pairwise Ciphers (1) : TKIP
Authentication Suites (1) : PSK
Encryption key:on
Bit Rates:1 Mb/s; 2 Mb/s; 5.5 Mb/s; 11 Mb/s; 22 Mb/s
6 Mb/s; 9 Mb/s; 12 Mb/s; 18 Mb/s; 24 Mb/s
36 Mb/s; 48 Mb/s; 54 Mb/s
eth0 Interface doesn't support scanning.
Vous pouvez également vérifier/var/log/syslog à la recherche d'erreurs à l'aide de votre éditeur.
Si vous êtes connecté à un serveur DHCP (principalement la passerelle), essayez d’obtenir manuellement un bail IP en utilisant dhclient eth1.
Essayez de vous connecter à votre passerelle pour vérifier si vous y êtes connecté.
J'ai rencontré le même problème, mais je l'ai résolu en modifiant les paramètres du routeur. J'ai commuté la sélection du canal de AUTO à 1. Apparemment, mon problème est survenu quand un canal> 11 était automatiquement sélectionné. En fait, mon problème ne s'est pas produit continuellement.
Pour plus de détails: Rapport de bug sur le tableau de bord
Mon appareil sans fil: Broadcom Corporation BCM43225 802.11b/g/n
Il peut y avoir plusieurs choses, mais je pense que le pare-feu bloque tout le trafic:
une défaillance matérielle du disque, telle que les erreurs d'E/S, peut entraîner la désactivation de net, car il ne parvient pas à stocker les données à partir du navigateur.
pare-feu bloquant le trafic, doit avoir une règle pour autoriser le TCP 25,53,80,110,443 et également pour autoriser la sortie 53.
si vous avez plusieurs programmes de pare-feu, fonctionnant simultanément, cela peut également devenir un problème, comme ufw et gufw, il est préférable d'utiliser uniquement gufw ...
Je devais faire:
ifdown eth0
pour que mon réseau fonctionne réellement. J'ai déjà eu un bail, etc. Je cours 12.04 BTW.
On dirait que vous n'avez pas d'adresse IP.
IPv4 Settings:
Address: 0.0.0.0 <----- NO IP
Prefix: 24 (255.255.255.0)
Gateway: 192.168.1.1
DNS: 192.168.1.1
Vérifier l'IP avec
ifconfig
et route avec
route -n
Avez-vous vérifié votre configuration IP?
ifconfig eth1
et table de routage
route -n
Juste pour vérifier quel était le problème.