Comment 23 for bug 176602

Same problem here.

[ 6951.725704] iwl3945: Intel(R) PRO/Wireless 3945ABG/BG Network Connection driver for Linux, 1.2.0
[ 6951.725713] iwl3945: Copyright(c) 2003-2007 Intel Corporation
[ 6951.725875] ACPI: PCI Interrupt 0000:03:00.0[A] -> GSI 18 (level, low) -> IRQ 18
[ 6951.725902] PCI: Setting latency timer of device 0000:03:00.0 to 64
[ 6951.726985] iwl3945: Detected Intel PRO/Wireless 3945ABG Network Connection
[ 6951.822744] iwl3945: Tunable channels: 13 802.11bg, 12 802.11a channels
[ 6951.824125] wmaster0: Selected rate control algorithm 'iwl-3945-rs'
[ 6951.830518] udev: renamed network interface wlan0 to eth1
[ 6951.852097] ADDRCONF(NETDEV_UP): eth1: link is not ready
[ 6952.951841] eth1: Initial auth_alg=0
[ 6952.951853] eth1: authenticate with AP 00:80:c6:e3:e2:94
[ 6952.954293] eth1: RX authentication from 00:80:c6:e3:e2:94 (alg=0 transaction=2 status=0)
[ 6952.954302] eth1: authenticated
[ 6952.954306] eth1: associate with AP 00:80:c6:e3:e2:94
[ 6952.957740] eth1: RX AssocResp from 00:80:c6:e3:e2:94 (capab=0x51 status=18 aid=1)
[ 6952.957748] eth1: AP denied association (code=18)
[ 6953.153713] eth1: associate with AP 00:80:c6:e3:e2:94
[ 6953.157167] eth1: RX AssocResp from 00:80:c6:e3:e2:94 (capab=0x51 status=18 aid=1)
[ 6953.157176] eth1: AP denied association (code=18)
[ 6953.353595] eth1: associate with AP 00:80:c6:e3:e2:94
[ 6953.358926] eth1: RX AssocResp from 00:80:c6:e3:e2:94 (capab=0x51 status=18 aid=1)
[ 6953.358936] eth1: AP denied association (code=18)
[ 6953.553513] eth1: association with AP 00:80:c6:e3:e2:94 timed out

Installation of linux-backports-modules-hardy-generic solved the problem.