Comment 2 for bug 276980

The only work-around I have found is to disable WPA. I went to a completely open system with no auth and no encryption and it worked.

"iwconfig wlan0 essid x mode managed" does not help.

Here is my "lshw -C network" (while connected to an open WiFi AP):
  *-network:0
       description: Wireless interface
       product: BCM4306 802.11b/g Wireless LAN Controller
       vendor: Broadcom Corporation
       physical id: 9
       bus info: pci@0000:00:09.0
       logical name: wlan0
       version: 02
       serial: 00:90:4b:93:2a:fe
       width: 32 bits
       clock: 33MHz
       capabilities: pm bus_master cap_list ethernet physical wireless
       configuration: broadcast=yes driver=ndiswrapper+bcmwl5 driverversion=1.53+Broadcom,06/26/2004, 3.70.1 latency=64 link=no module=ndiswrapper multicast=yes wireless=IEEE 802.11g
  *-network:1
       description: Ethernet interface
       product: DP83815 (MacPhyter) Ethernet Controller
       vendor: National Semiconductor Corporation
       physical id: 12
       bus info: pci@0000:00:12.0
       logical name: eth0
       version: 00
       serial: 00:0f:20:c7:4f:d7
       size: 10MB/s
       capacity: 100MB/s
       width: 32 bits
       clock: 33MHz
       capabilities: pm bus_master cap_list ethernet physical tp mii fibre 10bt 10bt-fd 100bt 100bt-fd autonegotiation
       configuration: autonegotiation=on broadcast=yes driver=natsemi driverversion=2.1 duplex=half latency=90 link=no maxlatency=52 mingnt=11 module=natsemi multicast=yes port=twisted pair speed=10MB/s

Attached find my /var/log/syslog from a similar run, also on Intrepid Alpha 6...