hi,
i am also having same problem. I have posted abt it. you can see it here http://forum.mikrotik.com/t/user-manager-stops-functioning-after-upgrading/16959/1 . But no reply on this
After downgrading the package, I could restored the usermanager database and configurations. But the users cannot login through hotspot. Its waiting for a long time, user-manager shows authorisation success. But the user cannot browse. The users can browse after disabling the hotspot and without user-manager etc…
Currently it is not possible to disconnect wireless user from the access point, when User Manager is used.
User Manager does not support RADIUS incoming feature yet.