hope so i will get some help here. i will try to describe my small network. i have mikrotik (v4.3 L5) with 3 nic.
- nic1 - adsl, has connection with adsl router. mikrotik has pppoe client, and connect on internet over nic1
- lan1 - some users go on internet over gateway (network 10.1.0.0/27) and that works fine. all users can go on internet.
- lan2 - subnet 10.2.0.0/27. on this interface i have hot spot.
on both lan i got dhcp server, and that works fine.
problem is:
i configured mikrotik Radius and user manager combination. when i try to log on my hotspot, in log file i got error: login failed: Radius server is not responding. when i create user direct in hot spot, with adequate user profile, i can log in over hotspot, and then is ok. problem is, why i can’t log in hotspot when i using user manager. in radius i put my ip (on lan2 10.2.0.1), set up secret, on user manager i added customer, router, and subscriber. (i have similary configuration at my home, but there i have just 2 interface - lan & adsl and there is no problem).
i have one problem more. when i enable hotspot on interface lan2. then i can’t ping 10.1.0.0/27 ip’s from 10.2.0.0/27, and inversely. when i put 10.1.0.0/27 in walled garden as dst-address, and 10.2.0.0/27 same, then i can ping in both direction, but can’t get login page of user manager 
:(:(
can someone help me? sorry for my bad english
EDIT: i had installed 3.30 before, but same problem :S
with Regards,
CollinsB