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Connecté au wifi mais pas d'internet

Grochaton

Bonjour, j'ai presque les mêmes symptômes qu' yogeek27 (dans cette discussion) : ping qui perd des paquets + connecté au wifi + pas d'Internet
Sauf que j'ai bien "utilisation de source du pilote réseau sans fil Broadcom 802.11[...]" Coché
Faut il ouvrir une nouvelle question ?
Je suis en train de chercher un moyen de passer le fameux script sur l'ordi
Voici le résultat


>>    cat /etc/lsb-release 

DISTRIB_ID=Ubuntu
DISTRIB_RELEASE=15.04
DISTRIB_CODENAME=vivid
DISTRIB_DESCRIPTION="Ubuntu 15.04"

>>    lsusb 

Bus 002 Device 004: ID 0d49:7350 Maxtor 
Bus 002 Device 002: ID 0644:0200 TEAC Corp. All-In-One Multi-Card Reader CA200/B/S
Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 008 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 007 Device 002: ID 046d:c049 Logitech, Inc. G5 Laser Mouse
Bus 007 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 006 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 001 Device 004: ID 0bb4:0f25 HTC (High Tech Computer Corp.) 
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 005 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 004 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 003 Device 002: ID 0d62:2106 Darfon Electronics Corp. Dell L20U Multimedia Keyboard
Bus 003 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub

>>    lspci -k -nn | grep -A 3 -i net 

00:19.0 Ethernet controller [0200]: Intel Corporation 82566DC-2 Gigabit Network Connection [8086:294c] (rev 02)
    Subsystem: Dell Device [1028:0215]
    Kernel driver in use: e1000e
00:1a.0 USB controller [0c03]: Intel Corporation 82801I (ICH9 Family) USB UHCI Controller #4 [8086:2937] (rev 02)
--
02:00.0 Network controller [0280]: Broadcom Corporation BCM4321 802.11a/b/g/n [14e4:4328] (rev 03)
    Subsystem: Dell Wireless 1500 Draft 802.11n WLAN Mini-card [1028:000a]
    Kernel driver in use: wl
07:0a.0 FireWire (IEEE 1394) [0c00]: Texas Instruments TSB43AB22A IEEE-1394a-2000 Controller (PHY/Link) [iOHCI-Lynx] [104c:8023]

>>    sudo lshw -C network 

  *-network
       description: Interface réseau sans fil
       produit: BCM4321 802.11a/b/g/n
       fabriquant: Broadcom Corporation
       identifiant matériel: 0
       information bus: pci@0000:02:00.0
       nom logique: wlan0
       version: 03
       numéro de série: 00:24:2c:56:d3:83
       bits: 64 bits
       horloge: 33MHz
       fonctionnalités: pm msi pciexpress bus_master cap_list ethernet physical wireless
       configuration: broadcast=yes driver=wl0 driverversion=6.30.223.248 (r487574) ip=192.168.1.23 latency=0 multicast=yes wireless=IEEE 802.11abg
       ressources: irq:16 mémoire:fbffc000-fbffffff mémoire:fa000000-fa0fffff
  *-network
       description: Ethernet interface
       produit: 82566DC-2 Gigabit Network Connection
       fabriquant: Intel Corporation
       identifiant matériel: 19
       information bus: pci@0000:00:19.0
       nom logique: eth0
       version: 02
       numéro de série: 00:22:19:23:69:4c
       capacité: 1Gbit/s
       bits: 32 bits
       horloge: 33MHz
       fonctionnalités: pm msi bus_master cap_list ethernet physical tp 10bt 10bt-fd 100bt 100bt-fd 1000bt-fd autonegotiation
       configuration: autonegotiation=on broadcast=yes driver=e1000e driverversion=2.3.2-k firmware=1.1-1 latency=0 link=no multicast=yes port=twisted pair
       ressources: irq:30 mémoire:fdfe0000-fdffffff mémoire:fdfdb000-fdfdbfff portE/S:eca0(taille=32)

>>    lsmod 

Module                  Size  Used by
iptable_filter         16384  0 
ip_tables              28672  1 iptable_filter
x_tables               36864  2 ip_tables,iptable_filter
snd_hda_codec_hdmi     53248  1 
gpio_ich               16384  0 
nvidia               8646656  63 
snd_hda_codec_idt      65536  1 
snd_hda_codec_generic    69632  1 snd_hda_codec_idt
snd_hda_intel          36864  6 snd_hda_codec_hdmi
snd_hda_controller     32768  1 snd_hda_intel
snd_hda_codec         143360  5 snd_hda_codec_hdmi,snd_hda_codec_idt,snd_hda_codec_generic,snd_hda_intel,snd_hda_controller
dcdbas                 16384  0 
snd_hwdep              20480  1 snd_hda_codec
snd_pcm               106496  4 snd_hda_codec_hdmi,snd_hda_codec,snd_hda_intel,snd_hda_controller
x38_edac               16384  0 
coretemp               16384  0 
snd_seq_midi           16384  0 
snd_seq_midi_event     16384  1 snd_seq_midi
snd_rawmidi            32768  1 snd_seq_midi
snd_seq                69632  2 snd_seq_midi_event,snd_seq_midi
wl                   6369280  0 
snd_seq_device         16384  3 snd_seq,snd_rawmidi,snd_seq_midi
drm                   348160  3 nvidia
snd_timer              32768  2 snd_pcm,snd_seq
cfg80211              540672  1 wl
snd                    90112  21 snd_hwdep,snd_timer,snd_hda_codec_hdmi,snd_hda_codec_idt,snd_pcm,snd_seq,snd_rawmidi,snd_hda_codec_generic,snd_hda_codec,snd_hda_intel,snd_seq_device
serio_raw              16384  0 
lpc_ich                24576  0 
soundcore              16384  2 snd,snd_hda_codec
shpchp                 40960  0 
edac_core              53248  1 x38_edac
mac_hid                16384  0 
parport_pc             32768  0 
ppdev                  20480  0 
lp                     20480  0 
parport                45056  3 lp,ppdev,parport_pc
autofs4                40960  2 
hid_generic            16384  0 
usbhid                 53248  0 
hid                   110592  2 hid_generic,usbhid
uas                    24576  0 
usb_storage            69632  2 uas
psmouse               118784  0 
ahci                   36864  2 
libahci                32768  1 ahci
firewire_ohci          45056  0 
firewire_core          69632  1 firewire_ohci
crc_itu_t              16384  1 firewire_core
e1000e                237568  0 
ptp                    20480  1 e1000e
pps_core               20480  1 ptp


>>    iwconfig 

wlan0     IEEE 802.11abg  ESSID:"freebox_A2FFAB"  
          Mode:Managed  Frequency:2.447 GHz  Access Point: 00:24:D4:51:5B:C4   
          Retry short limit:7   RTS thr:off   Fragment thr:off
          Power Management:on
          

>>    ifconfig -a 

eth0      Link encap:Ethernet  HWaddr 00:22:19:23:69:4c  
          UP BROADCAST MULTICAST  MTU:1500  Metric:1
          Packets reçus:0 erreurs:0 :0 overruns:0 frame:0
          TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 lg file transmission:1000 
          Octets reçus:0 (0.0 B) Octets transmis:0 (0.0 B)
          Interruption:21 Mémoire:fdfe0000-fe000000 

lo        Link encap:Boucle locale  
          inet adr:127.0.0.1  Masque:255.0.0.0
          adr inet6: ::1/128 Scope:Hôte
          UP LOOPBACK RUNNING  MTU:65536  Metric:1
          Packets reçus:4472 erreurs:0 :0 overruns:0 frame:0
          TX packets:4472 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 lg file transmission:0 
          Octets reçus:479647 (479.6 KB) Octets transmis:479647 (479.6 KB)

wlan0     Link encap:Ethernet  HWaddr 00:24:2c:56:d3:83  
          inet adr:192.168.1.23  Bcast:192.168.1.255  Masque:255.255.255.0
          adr inet6: fe80::224:2cff:fe56:d383/64 Scope:Lien
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          Packets reçus:1724 erreurs:0 :0 overruns:0 frame:281325
          TX packets:3793 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 lg file transmission:1000 
          Octets reçus:399282 (399.2 KB) Octets transmis:404022 (404.0 KB)
          Interruption:16 Adresse de base:0xc000 


>>    sudo iwlist scan 

wlan0     Scan completed :
          Cell 01 - Address: 00:24:D4:51:5B:C4
                    Channel:8
                    Frequency:2.447 GHz (Channel 8)
                    Quality=49/70  Signal level=-61 dBm  
                    Encryption key:on
                    ESSID:"freebox_A2FFAB"
                    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
                    Bit Rates:18 Mb/s; 24 Mb/s; 36 Mb/s; 48 Mb/s; 54 Mb/s
                    Mode:Master
                    Extra:tsf=0000000000000000
                    Extra: Last beacon: 84ms ago
                    IE: Unknown: 000E66726565626F785F413246464142
                    IE: Unknown: 010882848B962C0C1218
                    IE: Unknown: 030108
                    IE: Unknown: 050400020000
                    IE: Unknown: 2A0104
                    IE: Unknown: 3205243048606C
                    IE: WPA Version 1
                        Group Cipher : TKIP
                        Pairwise Ciphers (2) : CCMP TKIP
                        Authentication Suites (1) : PSK
                    IE: Unknown: 2D1AEC0003FFFFFF0001000000000000000100000000000000000000
                    IE: Unknown: 3D1608000000000000000000000000000000000000000000
                    IE: Unknown: 7F080000000000000040
                    IE: Unknown: DD180050F2020101000003A4000027A4000042435E0062322F00
                    IE: Unknown: 3D1608000400000000000000000000000000000000000000
          Cell 02 - Address: 00:24:D4:51:5B:C5
                    Channel:8
                    Frequency:2.447 GHz (Channel 8)
                    Quality=49/70  Signal level=-61 dBm  
                    Encryption key:off
                    ESSID:"FreeWifi"
                    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
                    Bit Rates:18 Mb/s; 24 Mb/s; 36 Mb/s; 48 Mb/s; 54 Mb/s
                    Mode:Master
                    Extra:tsf=0000000000000000
                    Extra: Last beacon: 84ms ago
                    IE: Unknown: 00084672656557696669
                    IE: Unknown: 010882848B962C0C1218
                    IE: Unknown: 030108
                    IE: Unknown: 2A0104
                    IE: Unknown: 3205243048606C
                    IE: Unknown: 2D1AEC0003FFFFFF0001000000000000000100000000000000000000
                    IE: Unknown: 3D1608000400000000000000000000000000000000000000
                    IE: Unknown: 7F080000000000000040
                    IE: Unknown: DD180050F2020101000003A4000027A4000042435E0062322F00
          Cell 03 - Address: 00:24:D4:51:5B:C6
                    Channel:8
                    Frequency:2.447 GHz (Channel 8)
                    Quality=49/70  Signal level=-61 dBm  
                    Encryption key:on
                    ESSID:"FreeWifi_secure"
                    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
                    Bit Rates:18 Mb/s; 24 Mb/s; 36 Mb/s; 48 Mb/s; 54 Mb/s
                    Mode:Master
                    Extra:tsf=0000000000000000
                    Extra: Last beacon: 84ms ago
                    IE: Unknown: 000F46726565576966695F736563757265
                    IE: Unknown: 010882848B962C0C1218
                    IE: Unknown: 030108
                    IE: Unknown: 2A0104
                    IE: Unknown: 3205243048606C
                    IE: IEEE 802.11i/WPA2 Version 1
                        Group Cipher : TKIP
                        Pairwise Ciphers (2) : CCMP TKIP
                        Authentication Suites (1) : 802.1x
                    IE: Unknown: 2D1AEC0003FFFFFF0001000000000000000100000000000000000000
                    IE: Unknown: 3D1608000400000000000000000000000000000000000000
                    IE: Unknown: 7F080000000000000040
                    IE: Unknown: DD180050F2020101000003A4000027A4000042435E0062322F00


>>    uname -r -m 

3.19.0-47-generic x86_64

>>    cat /etc/network/interfaces 

# interfaces(5) file used by ifup(8) and ifdown(8)
auto lo
iface lo inet loopback
# auto wlan0
# iface wlan0 inet dhcp

>>    nm-tool 


>>    sudo rfkill list 

0: phy0: Wireless LAN
    Soft blocked: no
    Hard blocked: no
1: brcmwl-0: Wireless LAN
    Soft blocked: no
    Hard blocked: no

Modération - J'ai détaché ta question de la discussion d'origine.

xubu1957

Bonjour,

Ta carte est:

description: Interface réseau sans fil
       produit: BCM4321 802.11a/b/g/n

Voir la documentation: [doc]wifi_broadcom_bcm43xx[/doc]
Il faut installer le pilote : firmware-b43-installer pour ta carte BCM4321

Grochaton

Merci, je tente ça et édit mon message une fois fait.
Édit:
Donc j'ai suivi la procédure d'installation du driver hors ligne comme décrit ici mais un fois l'ordinateur redemarré, j'ai toujours le driver "Broadcom 802.11 Linux STA" qui est noté comme pilote et toujours pas de connexion ...
Je n'arrive même plus à me connecter au wifi l'ordi n'arrête pas de demander la clef wifi en boucle et la commande service appelée plusieurs fois me renvoie quelques warn :


max@max-Dell-XPS430:~$ service network-manager status
● NetworkManager.service - Network Manager
   Loaded: loaded (/lib/systemd/system/NetworkManager.service; enabled; vendor preset: enabled)
   Active: active (running) since mar. 2016-02-02 12:23:10 CET; 9min ago
 Main PID: 2195 (NetworkManager)
   CGroup: /system.slice/NetworkManager.service
           └─2195 /usr/sbin/NetworkManager --no-daemon

févr. 02 12:32:49 max-Dell-XPS430 NetworkManager[2195]: <info> (wlan0): device state change: config -> unavailable (reason 'none') [50 20 0]
févr. 02 12:32:49 max-Dell-XPS430 NetworkManager[2195]: <info> (wlan0): deactivating device (reason 'none') [0]
févr. 02 12:32:49 max-Dell-XPS430 NetworkManager[2195]: <info> NetworkManager state is now DISCONNECTED
févr. 02 12:32:49 max-Dell-XPS430 NetworkManager[2195]: <info> WiFi now disabled by radio killswitch
févr. 02 12:32:52 max-Dell-XPS430 NetworkManager[2195]: <info> WiFi hardware radio set enabled
févr. 02 12:32:52 max-Dell-XPS430 NetworkManager[2195]: <info> WiFi now enabled by radio killswitch
févr. 02 12:32:52 max-Dell-XPS430 NetworkManager[2195]: <warn> could not get interface properties: No readable properties in this interface.
févr. 02 12:32:52 max-Dell-XPS430 NetworkManager[2195]: <info> (wlan0): supplicant interface state: starting -> ready
févr. 02 12:32:52 max-Dell-XPS430 NetworkManager[2195]: <info> (wlan0): device state change: unavailable -> disconnected (reason 'supplicant-availa...0 30 42]
févr. 02 12:32:52 max-Dell-XPS430 NetworkManager[2195]: <warn> could not get interface properties: No readable properties in this interface.
Hint: Some lines were ellipsized, use -l to show in full.
max@max-Dell-XPS430:~$ service network-manager status
● NetworkManager.service - Network Manager
   Loaded: loaded (/lib/systemd/system/NetworkManager.service; enabled; vendor preset: enabled)
   Active: active (running) since mar. 2016-02-02 12:23:10 CET; 11min ago
 Main PID: 2195 (NetworkManager)
   CGroup: /system.slice/NetworkManager.service
           └─2195 /usr/sbin/NetworkManager --no-daemon

févr. 02 12:34:49 max-Dell-XPS430 NetworkManager[2195]: <info> (wlan0): supplicant interface state: associating -> associated
févr. 02 12:34:53 max-Dell-XPS430 NetworkManager[2195]: <info> (wlan0): supplicant interface state: associated -> disconnected
févr. 02 12:34:53 max-Dell-XPS430 NetworkManager[2195]: <info> (wlan0): supplicant interface state: disconnected -> scanning
févr. 02 12:34:58 max-Dell-XPS430 NetworkManager[2195]: <warn> Activation (wlan0/wireless): association took too long.
févr. 02 12:34:58 max-Dell-XPS430 NetworkManager[2195]: <info> (wlan0): device state change: config -> need-auth (reason 'none') [50 60 0]
févr. 02 12:34:58 max-Dell-XPS430 NetworkManager[2195]: <warn> Activation (wlan0/wireless): asking for new secrets
févr. 02 12:34:58 max-Dell-XPS430 NetworkManager[2195]: <warn> Couldn't disconnect supplicant interface: This interface is not connected.
févr. 02 12:34:58 max-Dell-XPS430 NetworkManager[2195]: <warn> Couldn't disconnect supplicant interface: This interface is not connected.
févr. 02 12:35:01 max-Dell-XPS430 NetworkManager[2195]: <info> (wlan0): supplicant interface state: scanning -> inactive
févr. 02 12:35:03 max-Dell-XPS430 NetworkManager[2195]: <info> (wlan0): supplicant interface state: inactive -> disconnected
max@max-Dell-XPS430:~$ service network-manager status
● NetworkManager.service - Network Manager
   Loaded: loaded (/lib/systemd/system/NetworkManager.service; enabled; vendor preset: enabled)
   Active: active (running) since mar. 2016-02-02 12:23:10 CET; 14min ago
 Main PID: 2195 (NetworkManager)
   CGroup: /system.slice/NetworkManager.service
           └─2195 /usr/sbin/NetworkManager --no-daemon

févr. 02 12:36:58 max-Dell-XPS430 NetworkManager[2195]: <warn> No agents were available for this request.
févr. 02 12:36:58 max-Dell-XPS430 NetworkManager[2195]: <info> (wlan0): device state change: need-auth -> failed (reason 'no-secrets') [60 120 7]
févr. 02 12:36:58 max-Dell-XPS430 NetworkManager[2195]: <info> NetworkManager state is now DISCONNECTED
févr. 02 12:36:58 max-Dell-XPS430 NetworkManager[2195]: <warn> Activation (wlan0) failed for connection 'freebox_A2FFAB'
févr. 02 12:36:58 max-Dell-XPS430 NetworkManager[2195]: <info> (wlan0): device state change: failed -> disconnected (reason 'none') [120 30 0]
févr. 02 12:36:58 max-Dell-XPS430 NetworkManager[2195]: <info> (wlan0): deactivating device (reason 'none') [0]
févr. 02 12:37:00 max-Dell-XPS430 NetworkManager[2195]: <info> (wlan0): supplicant interface state: disconnected -> inactive
févr. 02 12:37:01 max-Dell-XPS430 NetworkManager[2195]: <info> (wlan0): supplicant interface state: inactive -> disconnected
févr. 02 12:37:03 max-Dell-XPS430 NetworkManager[2195]: <info> (wlan0): supplicant interface state: disconnected -> inactive
févr. 02 12:37:10 max-Dell-XPS430 NetworkManager[2195]: <info> (wlan0): supplicant interface state: inactive -> disconnected

Grochaton

Donc comme je le soupçonnais, le problème était bien hardware, d'où les paquets ping qui se perdaient.
Apparemment, Windows est moins sensible à la qualité de la connexion et arrive à fonctionner même avec beaucoup de pertes sur la connexion. Ubuntu lui ne fonctionnait pas du tout.
J'ai pris une clef wifi neuve à 12€ et tout refonctionne bien et vite.
Merci pour l'aide en tous cas.