PPPoE Server on LAN

Hi everybody.
I have a RB1100AH-X2 router and I want to implement AAA on my ethernet. I set up PPPoE server successfully and test it on clients. They can connect to PPPoE server. I used to set up Hotspot on LAN and I had many problem with LAN connections. They couldn’t establish connection with server unless they login to their hotspot accounts.
The main goal is 1) having a error free LAN connections and 2) connecting to Internet with specific AAA policy.
when I establish pppoe server, I had internet connection on clients even they didn’t login their pppoe connection.
please help me on this damned problem