We have a guest network with registration, that's set to expire users after a year. However, if users don't use the network much, they'll get removed by the Age End-Systems process, which removes devices not seen in 90 days (by default). There is a tickbox "Remove Associated Registration Data", which I was going to untick, but I wanted to see if anyone else has done this and what actually happens when the user reconnects after their end-system has been aged out?