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[khink <keeshink@xxxxxxxxx>]

Below, I tried to answer the questions the best way i could right now.
3A and 9 i will have to check later, i'm at home now. I'll mark it
Confirmed again when that's done.

By the way: Many questions in that link have already been answered
above, or are not so relevant to the issue as described ("Have you tried
turning it off and on again" came to mind). I'd say the only worthwile
information i haven't provided yet is in 3A and 9. That said:

1) What is the full computer model number (ex. HP G32-301TX Notebook
PC)?

Lenovo Thinkpad Edge S430

2) If you update your BIOS to the newest version, does this change
anything?

I'm not aware of any possible update to the BIOS.

3) Regarding your wireless Access Point (AP):

    A) What is the AP manufacturer, model, and firmware version?
     
I'll get back to you on that.

    B) What wireless connection type are you using (e.g. 802.11n,
802.11g, etc.)?

Only 802.11n has a problem

    C) Encryption Type (ex. WEP, WPA2-PSK TKIP/AES)?

WPA2

    D) MAC Filtering

None, anyone with password can connect.

    E) QoS/WMM

Don't know - what is it, how do i find it?

    F) Beacon Interval

Don't know - what is it, how do i find it?

    G) Router Internal Firewall

Disabled.

        a) If you change any of the settings above does it change
anything?

Haven't tried and i'm not at liberty to do so.

4) Does another wireless device tested with the AP have the same problem
as the hardware you initially reported with?

Not to my knowledge.

5) What is the distance of the wireless device from AP?

About 5m.
 
6) What is the number and type of obstructions between your device and the AP?

One door.

    A) If you bring the device close to the AP and eliminate
obstructions, does this change anything?

No.

7) Does the issue occur with different APs?

Yes. I first noticed it at the workplace, which the data in this comment
is for, but recently when i was at a conference, i noticed other people
could "see" an N-band network while i couldn't.

8) Is it a regression (e.g. did the problem happen in a prior Ubuntu
release)?

I don't know that.

    If so, what release specifically did it last work with?

    If you do not know, could you please test for this in the earliest
release of Ubuntu that is supported as per Ubuntu Releases?

9) Does this problem occur in the newest mainline kernel following
https://wiki.ubuntu.com/Kernel/MainlineBuilds? Please mention what
specific version of the mainline kernel you tested with in your report.

Yes, see the comment above where i tried that.

    If the mainline works, does the Ubuntu provided stable compat-
wireless backport work following
https://wiki.ubuntu.com/Kernel/LinuxWireless#Compat-wireless_in_Ubuntu?
Please mention in your report the specific version you tested.

    If the mailine does not work, could you please test upstream's
compat-wireless backport via
https://wiki.ubuntu.com/Kernel/LinuxWireless#Compat-
wireless_from_upstream? Please mention in your report the specific
version you tested.

I'll get back to you on that.

10) Does ndiswrapper work following
https://help.ubuntu.com/community/WifiDocs/Driver/Ndiswrapper? Please
mention what specific version of ndiswrapper you tested with, and a link
to the Windows driver you used in your report.

Not using ndiswrapper.

    If ndiswrapper does not work, you are welcome to file a new bug
report by executing at a terminal:

    ubuntu-bug ndiswrapper-utils-1.9

11) For Broadcom wireless chipsets, does the Broadcom STA driver work
following https://help.ubuntu.com/community/WifiDocs/Driver/bcm43xx?
Please mention what specific version of Broadcom STA you tested with in
your report.

It's not a Broadcom chipset (Intel).

12) For Realtek wireless chipsets, does the upstream Realtek drivers
downloaded from http://www.realtek.com.tw work? Please mention what
specific version of the drivers you tested with in your report.

It's not a Realtek chipset (Intel).

-- 
You received this bug notification because you are a member of Kernel
Packages, which is subscribed to linux in Ubuntu.
https://bugs.launchpad.net/bugs/1237051

Title:
  8086:0888 [Lenovo ThinkPad Edge S430] Centrino Wireless-N 2230:
  802.11n not working

Status in “linux” package in Ubuntu:
  Incomplete

Bug description:
  802.11n networks don't show up in the network manager.

  With N-band enabled, i see a lot of "Tx excessive retries".

  WORKAROUND: Disable N-band explicitly in /etc/modprobe.d/iwlwifi.conf.

  ProblemType: Bug
  DistroRelease: Ubuntu 13.04
  Package: linux-image-3.8.0-23-generic 3.8.0-23.34
  ProcVersionSignature: Ubuntu 3.8.0-23.34-generic 3.8.11
  Uname: Linux 3.8.0-23-generic x86_64
  ApportVersion: 2.9.2-0ubuntu8.3
  Architecture: amd64
  AudioDevicesInUse:
   USER        PID ACCESS COMMAND
   /dev/snd/controlC0:  kees       2139 F.... pulseaudio
  Date: Tue Oct  8 22:12:47 2013
  HibernationDevice: RESUME=UUID=16c6232f-9aca-4c99-80bc-86f1705fdf0b
  InstallationDate: Installed on 2013-01-17 (264 days ago)
  InstallationMedia: Ubuntu 12.10 "Quantal Quetzal" - Release amd64 (20121017.5)
  MachineType: LENOVO 33643EG
  MarkForUpload: True
  ProcEnviron:
   TERM=xterm
   PATH=(custom, no user)
   XDG_RUNTIME_DIR=<set>
   LANG=en_US.UTF-8
   SHELL=/bin/bash
  ProcFB:
   0 inteldrmfb
   1 nouveaufb
  ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-3.8.0-23-generic root=UUID=6278fb6c-cd42-4010-a8a3-16aa39c1682a ro quiet splash vt.handoff=7
  RelatedPackageVersions:
   linux-restricted-modules-3.8.0-23-generic N/A
   linux-backports-modules-3.8.0-23-generic  N/A
   linux-firmware                            1.106
  SourcePackage: linux
  UpgradeStatus: Upgraded to raring on 2013-04-25 (166 days ago)
  dmi.bios.date: 06/13/2012
  dmi.bios.vendor: LENOVO
  dmi.bios.version: GAET34WW (1.11 )
  dmi.board.asset.tag: Not Available
  dmi.board.name: 33643EG
  dmi.board.vendor: LENOVO
  dmi.board.version: Not Available
  dmi.chassis.asset.tag: No Asset Information
  dmi.chassis.type: 10
  dmi.chassis.vendor: LENOVO
  dmi.chassis.version: Not Available
  dmi.modalias: dmi:bvnLENOVO:bvrGAET34WW(1.11):bd06/13/2012:svnLENOVO:pn33643EG:pvrThinkPadEdgeS430:rvnLENOVO:rn33643EG:rvrNotAvailable:cvnLENOVO:ct10:cvrNotAvailable:
  dmi.product.name: 33643EG
  dmi.product.version: ThinkPad Edge S430
  dmi.sys.vendor: LENOVO

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