Ok, I seem to have made some progress on this one....Enable Force DHCP, disconnect client if client does not obtain valid IP in (this setting is in Wifi, advanced, other... I had this down to 10 seconds, this was my problem with some windows devices, if I set higher then they seem to go away, but if I set too high then folks that hibernate and come back dont re-ip fast enough and they have to manually disconnect and reconnect....I am now at 23 seconds, will update with progress... I am going to try to trim down until the windoze folks say uncle.