Cisco :: WLC 5508 Most Recent Traps Duplications

I have recently noticed that in my WLC traps  I keep finding lots of Mac addresses that have many hits on joining but it's the same MAC ADDRESS.  Example Mac addresss'08:11:96:e4:1a:60,4Wed Mar 27 16:05:56 2013Client with MAC address 08:11:96:e4:1a:60 has joined profile corporate5Wed Mar 27 16:05:45 2013Client with MAC address 08:11:96:e4:1a:60 has joined profile corporate7Wed Mar 27 16:04:53 2013Client with MAC address 08:11:96:e4:1a:60 has joined profile corporate12Wed Mar 27 16:02:51 2013Client with MAC address 08:11:96:e4:1a:60 has joined profile corporate  This has like 20 hits in the traps section and when I check my ISE this is also reflected on the authentication aspect. This is starting to occur with many different client laptops, why does it keep re-authenticatiing into the profile joined?Is there a Time to Live TTL setting I can set so it doesn't poll so often? The users aren't doing anything this is all occuring automcatically, I think it's the WLC 5508 controller not the ISE.