Captive Portal timeout bug
There's an error on Captive Portal when Idle Timeout and Hard Timeout is set, the users are intermittently logged out from the system and required to enter the credentials again. e.g. after every 2 - 5 minutes of activity, the user is logged out automatically when that is not supposed to happen since the set idle timeout is 120 minutes and 240 minutes for hard timeout.
Please upgrade to latest snapshots.
Known bug and fixed.
edanpedragosa, make sure you read the sticky about how to upgrade to the latest snapshot. It takes some manual intervention. If you are still on the July 4 snap, then you are running into that problem.