Resolved as of 2009-11-26 10:05:00
New web-authentication certificate is installed in BWRC cisco wireless controller and this requires to reboot the BWRC wireless device to take effect. The device will be rebooted on Nov 26 at 10:00am. The users in BWRC will lose wireless connection during the reboot, it should take less than 5 mins and the services should be restored within a short outage. This reboot will also come with the new firmware upgrade as well.