PPPoE and Hotspot Configuration

Hi,
I’m New in Mikrotik OS. Just I config Hotspot and PPPoe in RB750 with User Manager
I have some user connect with Lan Interface.

RB750>>Switch>>p2p Wifi>>>Switch>>user

Sometime my wireless having problem (p2p) and it’s restart.
then my user which before login in pppoe, they can’t connect or login.

Now How can I solve it,
or
If user try to login again with same username and pass, the prev login will logout automatically and new connect willbe stable.

how can I do this plz help me.

Thanks

looking for help plz

users have static ip, or use ip pool for tunnels?