I started looking at the advanced properties in device manager for the Broadcom 4313. The setting for Mixed Cell support was set disabled. From reading other blogs they indicated it should be set to enabled. I checked my other dell laptop and my wifes (which use Dell wireless controller, probably a quallcom) and they were set to enable. So I enabled it, rebooted and wahla the wireless saw my wireless router and connected. I''ve rebooted about 5 times now and it's still connecting. I'll see how it go's over the next few days and see if it connects to my work secure wireless.