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[Bug 1246670] Re: 14e4:4727 [Dell Inspiron 10z (1120)] Ubuntu 12.04.3 LTS: can't connect to WIFI


Dear Christopher,  sorry for the delay. I tried to make an extensive set of experiments, using live installations. The new "Trusty" version starts the wireless connection immediately (both 32 and 64 bit systems). However, also the live installation of 12.4.3 (32 bits) works perfectly, which is peculiar (it is the same version installed on my HD)...
More experiments with the current (troublesome) HD installation showed that after disabling and re-enabling wireless once or twice, usually the connection can be completed. Any idea of why this happens?

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  14e4:4727 [Dell Inspiron 10z (1120)] Ubuntu 12.04.3 LTS: can't connect
  to WIFI

Status in “linux” package in Ubuntu:

Bug description:
  After the last updates I can't connect anymore to WIFI networks, including:
   - office wifi (WPA / WPA2 enterprise + PEAP)
   - public wifi from airport lounges, hotels, conferences.

  The notebook (dell inspiron) still detects the available newtorks. If
  they are protected, then additional data are requested (passwords and
  the like). So it seems that the wifi card is working well with the
  current driver (see below for further evidence). However, then the
  connection times out before getting any IP address.

  When I switch to Windows, I immediately get the connection (then the
  wifi network and the notebook's hardware are OK).  Sometimes, when I
  switch back to Ubuntu, the connection starts spontaneously and I can
  work normally (as if the problem were in the DHCP protocol execution,
  and the Windows connection "did some work" that Ubuntu currently can't
  do). (further evidence that the driver is OK).

  I'm using the proprietary driver proposed by Ubuntu:
  "This package contains Broadcom 802.11 Linux STA wireless driver for use with Broadcom's BCM4311-, BCM4312-, BCM4313-, BCM4321-, BCM4322-, BCM43224-, and BCM43225-, BCM43227- and BCM43228-based hardware."

  AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.24.
  ApportVersion: 2.0.1-0ubuntu17.6
  Architecture: i386
   **** List of CAPTURE Hardware Devices ****
   card 0: SB [HDA ATI SB], device 0: ALC259 Analog [ALC259 Analog]
     Subdevices: 1/1
     Subdevice #0: subdevice #0
   /dev/snd/controlC1:  bonatti    1690 F.... pulseaudio
   /dev/snd/controlC0:  bonatti    1690 F.... pulseaudio
   Card hw:0 'SB'/'HDA ATI SB at 0xd0400000 irq 16'
     Mixer name	: 'Realtek ALC259'
     Components	: 'HDA:10ec0269,10280470,00100100'
     Controls      : 18
     Simple ctrls  : 10
   Card hw:1 'HDMI'/'HDA ATI HDMI at 0xd0110000 irq 19'
     Mixer name	: 'ATI RS690/780 HDMI'
     Components	: 'HDA:1002791a,00791a00,00100000'
     Controls      : 4
     Simple ctrls  : 1
   Simple mixer control 'IEC958',0
     Capabilities: pswitch pswitch-joined penum
     Playback channels: Mono
     Mono: Playback [on]
  DistroRelease: Ubuntu 12.04
  HibernationDevice: RESUME=UUID=8b9f8be8-b5ce-42d9-b311-de81faa160f6
  InstallationMedia: Ubuntu 12.04.1 LTS "Precise Pangolin" - Release i386 (20120817.3)
  MachineType: Dell Inc. Inspiron 1120
  MarkForUpload: True
  NonfreeKernelModules: wl
  Package: linux (not installed)
   PATH=(custom, no user)
  ProcFB: 0 radeondrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.2.0-55-generic-pae root=UUID=891059fc-57ca-484c-941a-e405cd31b74e ro quiet splash vt.handoff=7
  ProcVersionSignature: Ubuntu 3.2.0-55.85-generic-pae 3.2.51
   linux-restricted-modules-3.2.0-55-generic-pae N/A
   linux-backports-modules-3.2.0-55-generic-pae  N/A
   linux-firmware                                1.79.7
  Tags:  precise running-unity
  Uname: Linux 3.2.0-55-generic-pae i686
  UpgradeStatus: No upgrade log present (probably fresh install)
  UserGroups: adm cdrom dip lp lpadmin plugdev sambashare sudo
  dmi.bios.date: 07/26/2010
  dmi.bios.vendor: Dell Inc.
  dmi.bios.version: A03
  dmi.board.asset.tag: 1234567890
  dmi.board.name: 090DNY
  dmi.board.vendor: Dell Inc.
  dmi.board.version: A03
  dmi.chassis.asset.tag: 1234567890
  dmi.chassis.type: 8
  dmi.chassis.vendor: Dell Inc.
  dmi.chassis.version: A03
  dmi.modalias: dmi:bvnDellInc.:bvrA03:bd07/26/2010:svnDellInc.:pnInspiron1120:pvrA03:rvnDellInc.:rn090DNY:rvrA03:cvnDellInc.:ct8:cvrA03:
  dmi.product.name: Inspiron 1120
  dmi.product.version: A03
  dmi.sys.vendor: Dell Inc.

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