wifi card Doesnt find any network

Asked by Antony on 2011-10-15

Hello I just installed ubuntu 11.10 and want to connect to internet with my wifi (Laptop Dell XPS M1530) I go to System Settings and Install the additionall Drivers as it was at all previous version and it worked well but know it doesnt find any networks after installing the drivers :( Any solution ?

Question information

Language:
English Edit question
Status:
Answered
For:
Ubuntu gnome-nettool Edit question
Assignee:
No assignee Edit question
Last query:
2011-10-15
Last reply:
2011-10-15
Antony (skripniak) said : #1

This are some result of the following commands:

sudo lshw -C network

  *-network
       description: Ethernet interface
       product: 88E8040 PCI-E Fast Ethernet Controller
       vendor: Marvell Technology Group Ltd.
       physical id: 0
       bus info: pci@0000:09:00.0
       logical name: eth0
       version: 12
       serial: 00:15:c5:86:4a:d9
       size: 100Mbit/s
       capacity: 100Mbit/s
       width: 64 bits
       clock: 33MHz
       capabilities: pm msi pciexpress bus_master cap_list ethernet physical tp 10bt 10bt-fd 100bt 100bt-fd autonegotiation
       configuration: autonegotiation=on broadcast=yes driver=sky2 driverversion=1.28 duplex=full firmware=N/A ip=192.168.1.102 latency=0 link=yes multicast=yes port=twisted pair speed=100Mbit/s
       resources: irq:44 memory:f1ffc000-f1ffffff ioport:ce00(size=256)
  *-network UNCLAIMED
       description: Network controller
       product: BCM4311 802.11a/b/g
       vendor: Broadcom Corporation
       physical id: 0
       bus info: pci@0000:0b:00.0
       version: 01
       width: 32 bits
       clock: 33MHz
       capabilities: pm msi pciexpress bus_master cap_list
       configuration: latency=0
       resources: memory:f1efc000-f1efffff

lspci -nn

00:00.0 Host bridge [0600]: Intel Corporation Mobile PM965/GM965/GL960 Memory Controller Hub [8086:2a00] (rev 0c)
00:01.0 PCI bridge [0604]: Intel Corporation Mobile PM965/GM965/GL960 PCI Express Root Port [8086:2a01] (rev 0c)
00:1a.0 USB Controller [0c03]: Intel Corporation 82801H (ICH8 Family) USB UHCI Controller #4 [8086:2834] (rev 02)
00:1a.1 USB Controller [0c03]: Intel Corporation 82801H (ICH8 Family) USB UHCI Controller #5 [8086:2835] (rev 02)
00:1a.7 USB Controller [0c03]: Intel Corporation 82801H (ICH8 Family) USB2 EHCI Controller #2 [8086:283a] (rev 02)
00:1b.0 Audio device [0403]: Intel Corporation 82801H (ICH8 Family) HD Audio Controller [8086:284b] (rev 02)
00:1c.0 PCI bridge [0604]: Intel Corporation 82801H (ICH8 Family) PCI Express Port 1 [8086:283f] (rev 02)
00:1c.1 PCI bridge [0604]: Intel Corporation 82801H (ICH8 Family) PCI Express Port 2 [8086:2841] (rev 02)
00:1c.4 PCI bridge [0604]: Intel Corporation 82801H (ICH8 Family) PCI Express Port 5 [8086:2847] (rev 02)
00:1d.0 USB Controller [0c03]: Intel Corporation 82801H (ICH8 Family) USB UHCI Controller #1 [8086:2830] (rev 02)
00:1d.1 USB Controller [0c03]: Intel Corporation 82801H (ICH8 Family) USB UHCI Controller #2 [8086:2831] (rev 02)
00:1d.2 USB Controller [0c03]: Intel Corporation 82801H (ICH8 Family) USB UHCI Controller #3 [8086:2832] (rev 02)
00:1d.7 USB Controller [0c03]: Intel Corporation 82801H (ICH8 Family) USB2 EHCI Controller #1 [8086:2836] (rev 02)
00:1e.0 PCI bridge [0604]: Intel Corporation 82801 Mobile PCI Bridge [8086:2448] (rev f2)
00:1f.0 ISA bridge [0601]: Intel Corporation 82801HEM (ICH8M) LPC Interface Controller [8086:2815] (rev 02)
00:1f.1 IDE interface [0101]: Intel Corporation 82801HBM/HEM (ICH8M/ICH8M-E) IDE Controller [8086:2850] (rev 02)
00:1f.2 IDE interface [0101]: Intel Corporation 82801HBM/HEM (ICH8M/ICH8M-E) SATA IDE Controller [8086:2828] (rev 02)
00:1f.3 SMBus [0c05]: Intel Corporation 82801H (ICH8 Family) SMBus Controller [8086:283e] (rev 02)
01:00.0 VGA compatible controller [0300]: nVidia Corporation G86 [GeForce 8400M GS] [10de:0427] (rev a1)
03:09.0 FireWire (IEEE 1394) [0c00]: Ricoh Co Ltd R5C832 IEEE 1394 Controller [1180:0832] (rev 05)
03:09.1 SD Host controller [0805]: Ricoh Co Ltd R5C822 SD/SDIO/MMC/MS/MSPro Host Adapter [1180:0822] (rev 22)
03:09.2 System peripheral [0880]: Ricoh Co Ltd R5C592 Memory Stick Bus Host Adapter [1180:0592] (rev 12)
03:09.3 System peripheral [0880]: Ricoh Co Ltd xD-Picture Card Controller [1180:0852] (rev 12)
09:00.0 Ethernet controller [0200]: Marvell Technology Group Ltd. 88E8040 PCI-E Fast Ethernet Controller [11ab:4354] (rev 12)
0b:00.0 Network controller [0280]: Broadcom Corporation BCM4311 802.11a/b/g [14e4:4312] (rev 01)

lsmod
Module Size Used by
vesafb 13489 1
parport_pc 32114 0
ppdev 12849 0
rfcomm 38408 0
bnep 17923 2
bluetooth 148839 10 rfcomm,bnep
binfmt_misc 17292 1
nvidia 10390874 42
joydev 17393 0
dell_wmi 12601 0
sparse_keymap 13658 1 dell_wmi
dell_laptop 13519 0
dcdbas 14098 1 dell_laptop
option 21205 0
usb_wwan 19779 1 option
snd_hda_codec_idt 60049 1
usbserial 37203 2 option,usb_wwan
uvcvideo 67271 0
videodev 85626 1 uvcvideo
snd_hda_intel 24262 1
snd_hda_codec 91754 2 snd_hda_codec_idt,snd_hda_intel
snd_hwdep 13276 1 snd_hda_codec
snd_pcm 80468 2 snd_hda_intel,snd_hda_codec
snd_seq_midi 13132 0
snd_rawmidi 25241 1 snd_seq_midi
r852 17901 0
sm_common 16737 1 r852
nand 49707 2 r852,sm_common
nand_ids 8547 1 nand
nand_bch 13003 1 nand
bch 21757 1 nand_bch
nand_ecc 13070 1 nand
snd_seq_midi_event 14475 1 snd_seq_midi
mtd 35852 2 sm_common,nand
psmouse 73673 0
serio_raw 12990 0
snd_seq 51567 2 snd_seq_midi,snd_seq_midi_event
wl 2646601 0
snd_timer 28932 2 snd_pcm,snd_seq
snd_seq_device 14172 3 snd_seq_midi,snd_rawmidi,snd_seq
lib80211 14570 1 wl
video 18908 0
snd 55902 11 snd_hda_codec_idt,snd_hda_intel,snd_hda_codec,snd_hwdep,snd_pcm,snd_rawmidi,snd_seq,snd_timer,snd_seq_device
wmi 18744 1 dell_wmi
soundcore 12600 1 snd
snd_page_alloc 14115 2 snd_hda_intel,snd_pcm
lp 17455 0
parport 40930 3 parport_pc,ppdev,lp
usbhid 41905 0
hid 77367 1 usbhid
firewire_ohci 35854 0
firewire_core 56937 1 firewire_ohci
crc_itu_t 12627 1 firewire_core
sdhci_pci 13658 0
sdhci 27360 1 sdhci_pci
sky2 49317 0

grep blacklist /etc/modprobe.d/*
/etc/modprobe.d/alsa-base.conf:install snd /sbin/modprobe --ignore-install snd $CMDLINE_OPTS && { /sbin/modprobe --quiet --use-blacklist snd-ioctl32 ; /sbin/modprobe --quiet --use-blacklist snd-seq ; }
/etc/modprobe.d/alsa-base.conf:install snd-pcm /sbin/modprobe --ignore-install snd-pcm $CMDLINE_OPTS && { /sbin/modprobe --quiet --use-blacklist snd-pcm-oss ; : ; }
/etc/modprobe.d/alsa-base.conf:install snd-mixer /sbin/modprobe --ignore-install snd-mixer $CMDLINE_OPTS && { /sbin/modprobe --quiet --use-blacklist snd-mixer-oss ; : ; }
/etc/modprobe.d/alsa-base.conf:install snd-seq /sbin/modprobe --ignore-install snd-seq $CMDLINE_OPTS && { /sbin/modprobe --quiet --use-blacklist snd-seq-midi ; /sbin/modprobe --quiet --use-blacklist snd-seq-oss ; : ; }
/etc/modprobe.d/alsa-base.conf:install snd-rawmidi /sbin/modprobe --ignore-install snd-rawmidi $CMDLINE_OPTS && { /sbin/modprobe --quiet --use-blacklist snd-seq-midi ; : ; }
/etc/modprobe.d/alsa-base.conf:install snd-emu10k1 /sbin/modprobe --ignore-install snd-emu10k1 $CMDLINE_OPTS && { /sbin/modprobe --quiet --use-blacklist snd-emu10k1-synth ; }
/etc/modprobe.d/alsa-base.conf:install snd-via82xx /sbin/modprobe --ignore-install snd-via82xx $CMDLINE_OPTS && { /sbin/modprobe --quiet --use-blacklist snd-seq ; }
/etc/modprobe.d/alsa-base.conf:install saa7134 /sbin/modprobe --ignore-install saa7134 $CMDLINE_OPTS && { /sbin/modprobe --quiet --use-blacklist saa7134-alsa ; : ; }
/etc/modprobe.d/blacklist-ath_pci.conf:blacklist ath_pci
/etc/modprobe.d/blacklist-bcm43.conf:blacklist b43
/etc/modprobe.d/blacklist-bcm43.conf:blacklist b43legacy
/etc/modprobe.d/blacklist-bcm43.conf:blacklist ssb
/etc/modprobe.d/blacklist-bcm43.conf:blacklist bcm43xx
/etc/modprobe.d/blacklist-bcm43.conf:blacklist brcm80211
/etc/modprobe.d/blacklist.conf:blacklist evbug
/etc/modprobe.d/blacklist.conf:blacklist usbmouse
/etc/modprobe.d/blacklist.conf:blacklist usbkbd
/etc/modprobe.d/blacklist.conf:blacklist eepro100
/etc/modprobe.d/blacklist.conf:blacklist de4x5
/etc/modprobe.d/blacklist.conf:blacklist eth1394
/etc/modprobe.d/blacklist.conf:blacklist snd_intel8x0m
/etc/modprobe.d/blacklist.conf:blacklist snd_aw2
/etc/modprobe.d/blacklist.conf:blacklist i2c_i801
/etc/modprobe.d/blacklist.conf:blacklist prism54
/etc/modprobe.d/blacklist.conf:blacklist bcm43xx
/etc/modprobe.d/blacklist.conf:blacklist garmin_gps
/etc/modprobe.d/blacklist.conf:blacklist asus_acpi
/etc/modprobe.d/blacklist.conf:blacklist snd_pcsp
/etc/modprobe.d/blacklist.conf:blacklist pcspkr
/etc/modprobe.d/blacklist.conf:blacklist amd76x_edac
/etc/modprobe.d/blacklist-cups-usblp.conf:# cups talks to the raw USB devices, so we need to blacklist usblp to avoid
/etc/modprobe.d/blacklist-cups-usblp.conf:blacklist usblp
/etc/modprobe.d/blacklist-firewire.conf:blacklist ohci1394
/etc/modprobe.d/blacklist-firewire.conf:blacklist sbp2
/etc/modprobe.d/blacklist-firewire.conf:blacklist dv1394
/etc/modprobe.d/blacklist-firewire.conf:blacklist raw1394
/etc/modprobe.d/blacklist-firewire.conf:blacklist video1394
/etc/modprobe.d/blacklist-firewire.conf:#blacklist firewire-ohci
/etc/modprobe.d/blacklist-firewire.conf:#blacklist firewire-sbp2
/etc/modprobe.d/blacklist-framebuffer.conf:blacklist aty128fb
/etc/modprobe.d/blacklist-framebuffer.conf:blacklist atyfb
/etc/modprobe.d/blacklist-framebuffer.conf:blacklist radeonfb
/etc/modprobe.d/blacklist-framebuffer.conf:blacklist cirrusfb
/etc/modprobe.d/blacklist-framebuffer.conf:blacklist cyber2000fb
/etc/modprobe.d/blacklist-framebuffer.conf:blacklist cyblafb
/etc/modprobe.d/blacklist-framebuffer.conf:blacklist gx1fb
/etc/modprobe.d/blacklist-framebuffer.conf:blacklist hgafb
/etc/modprobe.d/blacklist-framebuffer.conf:blacklist i810fb
/etc/modprobe.d/blacklist-framebuffer.conf:blacklist intelfb
/etc/modprobe.d/blacklist-framebuffer.conf:blacklist kyrofb
/etc/modprobe.d/blacklist-framebuffer.conf:blacklist lxfb
/etc/modprobe.d/blacklist-framebuffer.conf:blacklist matroxfb_base
/etc/modprobe.d/blacklist-framebuffer.conf:blacklist neofb
/etc/modprobe.d/blacklist-framebuffer.conf:blacklist nvidiafb
/etc/modprobe.d/blacklist-framebuffer.conf:blacklist pm2fb
/etc/modprobe.d/blacklist-framebuffer.conf:blacklist rivafb
/etc/modprobe.d/blacklist-framebuffer.conf:blacklist s1d13xxxfb
/etc/modprobe.d/blacklist-framebuffer.conf:blacklist savagefb
/etc/modprobe.d/blacklist-framebuffer.conf:blacklist sisfb
/etc/modprobe.d/blacklist-framebuffer.conf:blacklist sstfb
/etc/modprobe.d/blacklist-framebuffer.conf:blacklist tdfxfb
/etc/modprobe.d/blacklist-framebuffer.conf:blacklist tridentfb
/etc/modprobe.d/blacklist-framebuffer.conf:#blacklist vesafb
/etc/modprobe.d/blacklist-framebuffer.conf:blacklist vfb
/etc/modprobe.d/blacklist-framebuffer.conf:blacklist viafb
/etc/modprobe.d/blacklist-framebuffer.conf:blacklist vt8623fb
/etc/modprobe.d/blacklist-modem.conf:# Uncomment these entries in order to blacklist unwanted modem drivers
/etc/modprobe.d/blacklist-modem.conf:# blacklist snd-atiixp-modem
/etc/modprobe.d/blacklist-modem.conf:# blacklist snd-intel8x0m
/etc/modprobe.d/blacklist-modem.conf:# blacklist snd-via82xx-modem
/etc/modprobe.d/blacklist-oss.conf:blacklist ac97
/etc/modprobe.d/blacklist-oss.conf:blacklist ac97_codec
/etc/modprobe.d/blacklist-oss.conf:blacklist ac97_plugin_ad1980
/etc/modprobe.d/blacklist-oss.conf:blacklist ad1848
/etc/modprobe.d/blacklist-oss.conf:blacklist ad1889
/etc/modprobe.d/blacklist-oss.conf:blacklist adlib_card
/etc/modprobe.d/blacklist-oss.conf:blacklist aedsp16
/etc/modprobe.d/blacklist-oss.conf:blacklist ali5455
/etc/modprobe.d/blacklist-oss.conf:blacklist btaudio
/etc/modprobe.d/blacklist-oss.conf:blacklist cmpci
/etc/modprobe.d/blacklist-oss.conf:blacklist cs4232
/etc/modprobe.d/blacklist-oss.conf:blacklist cs4281
/etc/modprobe.d/blacklist-oss.conf:blacklist cs461x
/etc/modprobe.d/blacklist-oss.conf:blacklist cs46xx
/etc/modprobe.d/blacklist-oss.conf:blacklist emu10k1
/etc/modprobe.d/blacklist-oss.conf:blacklist es1370
/etc/modprobe.d/blacklist-oss.conf:blacklist es1371
/etc/modprobe.d/blacklist-oss.conf:blacklist esssolo1
/etc/modprobe.d/blacklist-oss.conf:blacklist forte
/etc/modprobe.d/blacklist-oss.conf:blacklist gus
/etc/modprobe.d/blacklist-oss.conf:blacklist i810_audio
/etc/modprobe.d/blacklist-oss.conf:blacklist kahlua
/etc/modprobe.d/blacklist-oss.conf:blacklist mad16
/etc/modprobe.d/blacklist-oss.conf:blacklist maestro
/etc/modprobe.d/blacklist-oss.conf:blacklist maestro3
/etc/modprobe.d/blacklist-oss.conf:blacklist maui
/etc/modprobe.d/blacklist-oss.conf:blacklist mpu401
/etc/modprobe.d/blacklist-oss.conf:blacklist nm256_audio
/etc/modprobe.d/blacklist-oss.conf:blacklist opl3
/etc/modprobe.d/blacklist-oss.conf:blacklist opl3sa
/etc/modprobe.d/blacklist-oss.conf:blacklist opl3sa2
/etc/modprobe.d/blacklist-oss.conf:blacklist pas2
/etc/modprobe.d/blacklist-oss.conf:blacklist pss
/etc/modprobe.d/blacklist-oss.conf:blacklist rme96xx
/etc/modprobe.d/blacklist-oss.conf:blacklist sb
/etc/modprobe.d/blacklist-oss.conf:blacklist sb_lib
/etc/modprobe.d/blacklist-oss.conf:blacklist sgalaxy
/etc/modprobe.d/blacklist-oss.conf:blacklist sonicvibes
/etc/modprobe.d/blacklist-oss.conf:blacklist sound
/etc/modprobe.d/blacklist-oss.conf:blacklist sscape
/etc/modprobe.d/blacklist-oss.conf:blacklist trident
/etc/modprobe.d/blacklist-oss.conf:blacklist trix
/etc/modprobe.d/blacklist-oss.conf:blacklist uart401
/etc/modprobe.d/blacklist-oss.conf:blacklist uart6850
/etc/modprobe.d/blacklist-oss.conf:blacklist via82cxxx_audio
/etc/modprobe.d/blacklist-oss.conf:blacklist v_midi
/etc/modprobe.d/blacklist-oss.conf:blacklist wavefront
/etc/modprobe.d/blacklist-oss.conf:blacklist ymfpci
/etc/modprobe.d/blacklist-oss.conf:blacklist ac97_plugin_wm97xx
/etc/modprobe.d/blacklist-oss.conf:blacklist ad1816
/etc/modprobe.d/blacklist-oss.conf:blacklist audio
/etc/modprobe.d/blacklist-oss.conf:blacklist awe_wave
/etc/modprobe.d/blacklist-oss.conf:blacklist dmasound_core
/etc/modprobe.d/blacklist-oss.conf:blacklist dmasound_pmac
/etc/modprobe.d/blacklist-oss.conf:blacklist harmony
/etc/modprobe.d/blacklist-oss.conf:blacklist sequencer
/etc/modprobe.d/blacklist-oss.conf:blacklist soundcard
/etc/modprobe.d/blacklist-oss.conf:blacklist usb-midi
/etc/modprobe.d/blacklist-rare-network.conf:# vulnerability exploitations, they are being blacklisted here so that
/etc/modprobe.d/blacklist-watchdog.conf:blacklist acquirewdt
/etc/modprobe.d/blacklist-watchdog.conf:blacklist advantechwdt
/etc/modprobe.d/blacklist-watchdog.conf:blacklist alim1535_wdt
/etc/modprobe.d/blacklist-watchdog.conf:blacklist alim7101_wdt
/etc/modprobe.d/blacklist-watchdog.conf:blacklist booke_wdt
/etc/modprobe.d/blacklist-watchdog.conf:blacklist cpu5wdt
/etc/modprobe.d/blacklist-watchdog.conf:blacklist eurotechwdt
/etc/modprobe.d/blacklist-watchdog.conf:blacklist i6300esb
/etc/modprobe.d/blacklist-watchdog.conf:blacklist i8xx_tco
/etc/modprobe.d/blacklist-watchdog.conf:blacklist ib700wdt
/etc/modprobe.d/blacklist-watchdog.conf:blacklist ibmasr
/etc/modprobe.d/blacklist-watchdog.conf:blacklist indydog
/etc/modprobe.d/blacklist-watchdog.conf:blacklist iTCO_wdt
/etc/modprobe.d/blacklist-watchdog.conf:blacklist it8712f_wdt
/etc/modprobe.d/blacklist-watchdog.conf:blacklist it87_wdt
/etc/modprobe.d/blacklist-watchdog.conf:blacklist ixp2000_wdt
/etc/modprobe.d/blacklist-watchdog.conf:blacklist ixp4xx_wdt
/etc/modprobe.d/blacklist-watchdog.conf:blacklist machzwd
/etc/modprobe.d/blacklist-watchdog.conf:blacklist mixcomwd
/etc/modprobe.d/blacklist-watchdog.conf:blacklist mpc8xx_wdt
/etc/modprobe.d/blacklist-watchdog.conf:blacklist mpcore_wdt
/etc/modprobe.d/blacklist-watchdog.conf:blacklist mv64x60_wdt
/etc/modprobe.d/blacklist-watchdog.conf:blacklist pc87413_wdt
/etc/modprobe.d/blacklist-watchdog.conf:blacklist pcwd
/etc/modprobe.d/blacklist-watchdog.conf:blacklist pcwd_pci
/etc/modprobe.d/blacklist-watchdog.conf:blacklist pcwd_usb
/etc/modprobe.d/blacklist-watchdog.conf:blacklist s3c2410_wdt
/etc/modprobe.d/blacklist-watchdog.conf:blacklist sa1100_wdt
/etc/modprobe.d/blacklist-watchdog.conf:blacklist sbc60xxwdt
/etc/modprobe.d/blacklist-watchdog.conf:blacklist sbc7240_wdt
/etc/modprobe.d/blacklist-watchdog.conf:blacklist sb8360
/etc/modprobe.d/blacklist-watchdog.conf:blacklist sc1200wdt
/etc/modprobe.d/blacklist-watchdog.conf:blacklist sc520_wdt
/etc/modprobe.d/blacklist-watchdog.conf:blacklist sch311_wdt
/etc/modprobe.d/blacklist-watchdog.conf:blacklist scx200_wdt
/etc/modprobe.d/blacklist-watchdog.conf:blacklist shwdt
/etc/modprobe.d/blacklist-watchdog.conf:blacklist smsc37b787_wdt
/etc/modprobe.d/blacklist-watchdog.conf:blacklist softdog
/etc/modprobe.d/blacklist-watchdog.conf:blacklist twl4030_wdt
/etc/modprobe.d/blacklist-watchdog.conf:blacklist w83627hf_wdt
/etc/modprobe.d/blacklist-watchdog.conf:blacklist w83697hf_wdt
/etc/modprobe.d/blacklist-watchdog.conf:blacklist w83697ug_wdt
/etc/modprobe.d/blacklist-watchdog.conf:blacklist w83877f_wdt
/etc/modprobe.d/blacklist-watchdog.conf:blacklist w83977f_wdt
/etc/modprobe.d/blacklist-watchdog.conf:blacklist wafer5823wdt
/etc/modprobe.d/blacklist-watchdog.conf:blacklist wdt
/etc/modprobe.d/blacklist-watchdog.conf:blacklist wdt_pci
/etc/modprobe.d/blacklist-watchdog.conf:blacklist wm8350_wdt
/etc/modprobe.d/nvidia-graphics-drivers.conf:blacklist nouveau
/etc/modprobe.d/nvidia-graphics-drivers.conf:blacklist lbm-nouveau
/etc/modprobe.d/nvidia-graphics-drivers.conf:blacklist nvidia-173
/etc/modprobe.d/nvidia-graphics-drivers.conf:blacklist nvidia-96
/etc/modprobe.d/nvidia-graphics-drivers.conf:blacklist nvidia-current-updates
/etc/modprobe.d/nvidia-graphics-drivers.conf:blacklist nvidia-173-updates
/etc/modprobe.d/nvidia-graphics-drivers.conf:blacklist nvidia-96-updates

rfkill list

0: dell-wifi: Wireless LAN
 Soft blocked: no
 Hard blocked: no
1: dell-bluetooth: Bluetooth
 Soft blocked: yes
 Hard blocked: no
2: dell-wwan: Wireless WAN
 Soft blocked: no
 Hard blocked: no

dmesg | egrep -i "firm|lan|eth|network"
[ 2.536217] sky2 0000:09:00.0: eth0: addr 00:15:c5:86:4a:d9
[ 14.214415] eth%d: 5.100.82.38 driver failed with code 21
[ 14.266829] type=1400 audit(1318665416.601:3): apparmor="STATUS" operation="profile_load" name="/usr/lib/NetworkManager/nm-dhcp-client.action" pid=560 comm="apparmor_parser"
[ 16.098935] type=1400 audit(1318665418.433:7): apparmor="STATUS" operation="profile_replace" name="/usr/lib/NetworkManager/nm-dhcp-client.action" pid=866 comm="apparmor_parser"
[ 16.654712] sky2 0000:09:00.0: eth0: enabling interface
[ 16.654967] ADDRCONF(NETDEV_UP): eth0: link is not ready
[ 16.713684] Bluetooth: BNEP (Ethernet Emulation) ver 1.3
[ 542.225193] sky2 0000:09:00.0: eth0: Link is up at 100 Mbps, full duplex, flow control both
[ 542.225631] ADDRCONF(NETDEV_CHANGE): eth0: link becomes ready
[ 552.768034] eth0: no IPv6 routers present
[ 618.369513] sky2 0000:09:00.0: eth0: Link is down
[ 674.038415] sky2 0000:09:00.0: eth0: Link is up at 100 Mbps, full duplex, flow control both

I am pretty sure that your BCM4311 wireless adapter is experiencing the
following Broadcom driver bug in Ubuntu 11.10:

https://bugs.launchpad.net/ubuntu/+source/bcmwl/+bug/732677

I suggest installing bcmwl-kernel-source (5.60.48.36+bdcom-0ubuntu5)
from maverick (Ubuntu 10.10) using gdebi

Solution is described here:

https://bugs.launchpad.net/ubuntu/+source/bcmwl/+bug/732677/comments/23

Then reboot your PC and run the following commands to enable your
wireless adapter:

sudo apt-get update && sudo apt-get install rfkill
rfkill unblock all
sudo rfkill unblock all

Then retest wireless using NetworkManager

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