Bug confirmed on Intrepid Ibex Alpha 	6, fresh install on Thinkpad T42p 2373 with Intel WLAN 
KNetworkManager does timeout on wireless connection, but cable connection works.
HTH
/Lophiomys

ibmuser@T42pUXGA:~$ uname -a
Linux T42pUXGA 2.6.27-3-generic #1 SMP Wed Sep 10 16:02:00 UTC 2008 i686 GNU/Linux

SysLog:
2008-09-20 20:43:50	T42pUXGA	NetworkManager	<WARN>  wait_for_connection_expired(): Connection (2) /org/freedesktop/NetworkManagerSettings/Connection/0 failed to activate (timeout): (0) Connection was not provided by any settings service 
2008-09-20 20:47:03	T42pUXGA	kernel	[  853.168066] usb 3-1: USB disconnect, address 2
2008-09-20 20:47:03	T42pUXGA	hcid[5300]	HCI dev 0 down
2008-09-20 20:47:03	T42pUXGA	hcid[5300]	Stopping security manager 0
2008-09-20 20:47:03	T42pUXGA	hcid[5300]	Device hci0 has been disabled
2008-09-20 20:47:03	T42pUXGA	kernel	[  853.170437] btusb_intr_complete: hci0 urb f68ec700 failed to resubmit (19)
2008-09-20 20:47:03	T42pUXGA	kernel	[  853.171203] btusb_send_frame: hci0 urb f4381900 submission failed
2008-09-20 20:47:03	T42pUXGA	hcid[5300]	HCI dev 0 unregistered
2008-09-20 20:47:03	T42pUXGA	hcid[5300]	Unregister path: /org/bluez/hci0
2008-09-20 20:47:03	T42pUXGA	hcid[5300]	Device hci0 has been removed
2008-09-20 20:47:06	T42pUXGA	NetworkManager	<info>  Wireless now disabled by radio killswitch 
2008-09-20 20:47:06	T42pUXGA	NetworkManager	<info>  (eth1): device state change: 3 -> 2 
2008-09-20 20:47:06	T42pUXGA	NetworkManager	<info>  (eth1): deactivating device. 
2008-09-20 20:47:06	T42pUXGA	NetworkManager	<info>  (eth1): taking down device. 
2008-09-20 20:47:18	T42pUXGA	NetworkManager	<info>  Wireless now enabled by radio killswitch 
2008-09-20 20:47:18	T42pUXGA	NetworkManager	<WARN>  nm_device_wifi_set_enabled(): not in expected unavailable state! 
2008-09-20 20:47:18	T42pUXGA	NetworkManager	<info>  (eth1): bringing up device. 
2008-09-20 20:47:18	T42pUXGA	NetworkManager	<info>  (eth1): device state change: 2 -> 3 
2008-09-20 20:47:18	T42pUXGA	NetworkManager	<info>  (eth1): supplicant interface state change: 1 -> 2. 
2008-09-20 20:48:19	T42pUXGA	anacron[5364]	Job `cron.monthly' started
2008-09-20 20:48:19	T42pUXGA	anacron[7673]	Updated timestamp for job `cron.monthly' to 2008-09-20
2008-09-20 20:48:19	T42pUXGA	anacron[5364]	Job `cron.monthly' terminated
2008-09-20 20:48:19	T42pUXGA	anacron[5364]	Normal exit (3 jobs run)
2008-09-20 21:05:05	T42pUXGA	NetworkManager	<WARN>  wait_for_connection_expired(): Connection (2) /org/freedesktop/NetworkManagerSettings/Connection/0 failed to activate (timeout): (0) Connection was not provided by any settings service 
--------------------------------------------------------------------------

lshw:
    *-network:1  
        description: Wireless interface                                                                                                                                    
                product: PRO/Wireless 2200BG Network Connection                                                                                                                    
                vendor: Intel Corporation                                                                                                                                          
                physical id: 2                                                                                                                                                     
                bus info: pci@0000:02:02.0                                                                                                                                         
                logical name: eth1                                                                                                                                                 
                version: 05                                                                                                                                                        
                serial: 00:12:f0:8d:2c:49                                                                                                                                          
                width: 32 bits                                                                                                                                                     
                clock: 33MHz                                                                                                                                                       
                capabilities: pm bus_master cap_list ethernet physical wireless                                                                                                    
                configuration: broadcast=yes driver=ipw2200 driverversion=1.2.2kmprq firmware=ABG:9.0.2.6 (Mar 22 2005) latency=64 link=no maxlatency=24 mingnt=3 module=ipw2200 multicast=yes wireless=unassociated               
-----------------------------------------------------------------------------------------------