System takes ages to find WLANs with ipw2200

 I own a FSC Lifebook S-6120 with a Intel Corporation PRO/Wireless 2200BG network chipset.

<snip>
$ lspci | grep Net
01:0d.0 Network controller: Intel Corporation PRO/Wireless 2200BG [Calexico2] Network Connection (rev 05)
</snip>

Right after starting my notebook i can't find any WLANs

<snip>
$ iwlist scan
[...]
eth1 No scan results
[...]
</snip>

When i watch dmesg i see that the firmware is found everything seams ok:

<snip>
$ dmesg | grep ipw
[ 31.650611] ipw2200: Intel(R) PRO/Wireless 2200/2915 Network Driver, 1.2.2kmprq
[ 31.650616] ipw2200: Copyright(c) 2003-2006 Intel Corporation
[ 31.652564] ipw2200 0000:01:0d.0: PCI INT A -> Link[LNKC] -> GSI 11 (level, low) -> IRQ 11
[ 31.652654] ipw2200: Detected Intel PRO/Wireless 2200BG Network Connection
[ 31.652715] firmware: requesting ipw2200-bss.fw
[ 35.593734] ipw2200: Detected geography ZZD (13 802.11bg channels, 0 802.11a channels)
</snip>

After about 30-45 minutes working without WLAN i notice that the little planets of the network manager start spinning and i loose my ethernet connection. When i click on the network manager icon inside my panel i see the missing networks, "iwlist scan" confirms this.

<snip>
$ uptime
 15:08:17 up 46 min, 2 users, load average: 0.32, 0.33, 0.39
$ iwlist scan | grep ESSID
[...]
                    ESSID:"dukath-ub"
                    ESSID:"<hidden>"
                    ESSID:"<hidden>"
                    ESSID:"eduroam"
                    ESSID:"dukath-ubx"
                    ESSID:"belwue"
                    ESSID:"802.1X"
                    ESSID:"VPN/WEB"
</snip>

When i now look at the dmes log i see tons of messages saying "ipw2200: Failed to send SYSTEM_CONFIG: Already sending a command."

<snip>
$ dmesg | grep ipw
[ 31.650611] ipw2200: Intel(R) PRO/Wireless 2200/2915 Network Driver, 1.2.2kmprq
[ 31.650616] ipw2200: Copyright(c) 2003-2006 Intel Corporation
[ 31.652564] ipw2200 0000:01:0d.0: PCI INT A -> Link[LNKC] -> GSI 11 (level, low) -> IRQ 11
[ 31.652654] ipw2200: Detected Intel PRO/Wireless 2200BG Network Connection
[ 31.652715] firmware: requesting ipw2200-bss.fw
[ 35.593734] ipw2200: Detected geography ZZD (13 802.11bg channels, 0 802.11a channels)
[ 2713.210821] ipw2200: Failed to send SYSTEM_CONFIG: Already sending a command.
[ 2725.715568] ipw2200: Failed to send SYSTEM_CONFIG: Already sending a command.
[ 2744.363038] ipw2200: Failed to send SYSTEM_CONFIG: Already sending a command.
[...]
[ 3565.084008] ipw2200: Failed to send SYSTEM_CONFIG: Already sending a command.
</snip>

ProblemType: Bug
Architecture: i386
DistroRelease: Ubuntu 8.10
LsUsb:
 Bus 004 Device 002: ID 044e:3001 Alps Electric Co., Ltd UGTZ4 Bluetooth
 Bus 004 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
 Bus 003 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
 Bus 002 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
 Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Package: linux-image-2.6.27-7-generic 2.6.27-7.15
ProcCmdLine: root=/dev/mapper/hostname-root ro quiet splash i8042.reset i8042.nomux
ProcEnviron:
 PATH=/home/username/bin:/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/usr/games
 LANG=de_DE.UTF-8
 SHELL=/bin/bash
ProcVersionSignature: Ubuntu 2.6.27-7.15-generic
SourcePackage: linux