Problem in communicating AP

Hi,
I am using 3 mikrotik v4.x as AP for my wireless communication.

my setup is like :

Mikrotik RouterOS v3.x: Interfaces: Public : 192.168.10.1
LAN : 10.10.10.1/24

From LAN interface—>Switch—>AP1 ether1<—bridge—>wan1---->Anenna.
|—>AP2 ether1<—bridge—>wan1---->Anenna

all the clients are wireless clients.
In AP’s i have bridged between ether1 and wan1.
but i unable to ping AP’s ether1 from my Mikrotik routerOS. How to enable ping.
Please help me.