I believe I've found a bug (not sure if the team are aware but here it is). This test is based on Hotspot/radius/user manager all on the same router.
Create a profile with say 30 seconds of access time and payment for it.
Get a user to sign up to that package and allow them to log on.
As long as the user remains active (for the duration set) they will not get logged out after their 'credit time' has expired.
But if you logout as the user, and try to log in, you will find that you can no longer gain access.
Can anyone think of a way to get around this issue?
Also another issue (not sure if its meant to be like this):
You cant delete pass payment records.