Yes Everything was fine till upgrading controllers feom 6.3.x to 6.4.x and also I have another case where user should be cached for 7 days and once user already connect on first floor when he move to 5th floor he redirected to captive portal again and I have that first floor on master controller and the other floors aps on local so I need to understand why this behavior is happenibg and what should I check as I can see everthing looks OK