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["marco.pallotta" <marco.pallotta@xxxxxxxxx>]

The bus is still present in 12.04 (Intel Corporation PRO/Wireless 3945ABG ).
After some attemps (from some minutes to many and many minutes) the connection succeeds else if I restart the router all goes ok (but only linux sistems are affected by this issues, no android or windows smartphone/laptop or my kindle device suffer by this problem).

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https://bugs.launchpad.net/bugs/931303

Title:
  "4-Way Handshake failed" connecting Wi-Fi after boot; retrying
  repeatedly eventually succeeds ­-- Broadcom BCM4321 wl

Status in network-manager package in Ubuntu:
  Fix Released

Bug description:
  I have a Dell Inspiron 1720, Ubuntu 11.10, the Broadcom STA driver
  installed.

  When starting ubuntu, the wireless doesn't connect and the message in
  the syslog is "4-Way Handshake failed - pre-shared key may be
  incorrect".

  I managed to make it work, sometimes by chance. Sometimes I stop the
  connection, kill wpa_supplicant and then try again and it works. If it
  works once, I can put the computer to sleep, move to another place and
  connect to a different network without a problem.

  See below a sample log.

  Feb 13 09:58:06 abulafia NetworkManager[1260]: <info> Activation (eth1) starting connection 'Ap16'
  Feb 13 09:58:06 abulafia NetworkManager[1260]: <info> (eth1): device state change: disconnected -> prepare (reason 'none') [30 40 0]
  Feb 13 09:58:06 abulafia NetworkManager[1260]: <info> Activation (eth1) Stage 1 of 5 (Device Prepare) scheduled...
  Feb 13 09:58:06 abulafia NetworkManager[1260]: <info> Activation (eth1) Stage 1 of 5 (Device Prepare) started...
  Feb 13 09:58:06 abulafia NetworkManager[1260]: <info> Activation (eth1) Stage 2 of 5 (Device Configure) scheduled...
  Feb 13 09:58:06 abulafia NetworkManager[1260]: <info> Activation (eth1) Stage 1 of 5 (Device Prepare) complete.
  Feb 13 09:58:06 abulafia NetworkManager[1260]: <info> Activation (eth1) Stage 2 of 5 (Device Configure) starting...
  Feb 13 09:58:06 abulafia NetworkManager[1260]: <info> (eth1): device state change: prepare -> config (reason 'none') [40 50 0]
  Feb 13 09:58:06 abulafia NetworkManager[1260]: <info> Activation (eth1/wireless): connection 'Ap16' has security, and secrets exist.  No new secrets needed.
  Feb 13 09:58:06 abulafia NetworkManager[1260]: <info> Config: added 'ssid' value 'Ap16'
  Feb 13 09:58:06 abulafia NetworkManager[1260]: <info> Config: added 'scan_ssid' value '1'
  Feb 13 09:58:06 abulafia NetworkManager[1260]: <info> Config: added 'key_mgmt' value 'WPA-PSK'
  Feb 13 09:58:06 abulafia NetworkManager[1260]: <info> Config: added 'auth_alg' value 'OPEN'
  Feb 13 09:58:06 abulafia NetworkManager[1260]: <info> Config: added 'psk' value '<omitted>'
  Feb 13 09:58:06 abulafia NetworkManager[1260]: <info> Activation (eth1) Stage 2 of 5 (Device Configure) complete.
  Feb 13 09:58:06 abulafia NetworkManager[1260]: <info> Config: set interface ap_scan to 1
  Feb 13 09:58:06 abulafia NetworkManager[1260]: <info> (eth1): supplicant interface state: disconnected -> scanning
  Feb 13 09:58:08 abulafia wpa_supplicant[1496]: Trying to associate with 00:25:9c:3d:0d:0e (SSID='Ap16' freq=2437 MHz)
  Feb 13 09:58:08 abulafia wpa_supplicant[1496]: Association request to the driver failed
  Feb 13 09:58:08 abulafia NetworkManager[1260]: <info> (eth1): supplicant interface state: scanning -> associating
  Feb 13 09:58:09 abulafia wpa_supplicant[1496]: Associated with 00:25:9c:3d:0d:0e
  Feb 13 09:58:09 abulafia NetworkManager[1260]: <info> (eth1): supplicant interface state: associating -> associated
  Feb 13 09:58:09 abulafia NetworkManager[1260]: <info> (eth1): supplicant interface state: associated -> 4-way handshake
  Feb 13 09:58:17 abulafia wpa_supplicant[1496]: WPA: 4-Way Handshake failed - pre-shared key may be incorrect

  ProblemType: Bug
  DistroRelease: Ubuntu 11.10
  Package: network-manager 0.9.1.90-0ubuntu5.1
  ProcVersionSignature: Ubuntu 3.0.0-15.26-generic-pae 3.0.13
  Uname: Linux 3.0.0-15-generic-pae i686
  NonfreeKernelModules: nvidia wl
  ApportVersion: 1.23-0ubuntu4
  Architecture: i386
  CRDA: Error: command ['iw', 'reg', 'get'] failed with exit code 1: nl80211 not found.
  Date: Mon Feb 13 10:43:20 2012
  InstallationMedia: Ubuntu 10.04 LTS "Lucid Lynx" - Release i386 (20100429)
  InterestingModules: b44
  IpRoute:
   default via 10.64.64.64 dev ppp0  proto static 
   10.64.64.64 dev ppp0  proto kernel  scope link  src 10.80.46.173 
   169.254.0.0/16 dev ppp0  scope link  metric 1000
  NetworkManager.state:
   [main]
   NetworkingEnabled=true
   WirelessEnabled=true
   WWANEnabled=true
  ProcEnviron:
   LANGUAGE=
   PATH=(custom, no user)
   LANG=en_US.UTF-8
   SHELL=/bin/bash
  SourcePackage: network-manager
  UpgradeStatus: Upgraded to oneiric on 2011-11-03 (101 days ago)

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