Url: http://www.cisco.com/en/US/partner/ts/fn/632/fn63258.html
Description: Cisco has observed that certain identified serial numbers of WLC 4400 series controllers may fail to boot on a subsequent power cycle. Few 4400 series controllers that are built between November 2008 and March 2009 have experienced lower test during power cycles due to a bad part.
Date: 2009-10-06 10:00:00.0