How to connect 3 mikrotik rb411?

I recently set up three rb411 with ubiquity xr9 wireless card…i need those 3 card communicate so that i can make an IP ping process in CMD(command prompt)…i set all of them to bridge mode(in wireless interface) 2.4Ghz-b band with 2.422Ghz frequency…and name it as A B and C

If i ping A to B vice versa there is no problem.when trying to ping A to C or B to C the ‘host destination unreachable’ occurred.
Why is that happening?Am i set it wrongly?how to communicate for those 3 cards?

Regards
Fidz

try searching in the forum for point-to-multipoint or pmtp
from what i understand you want the 3 routers to communicate independently in something like a triangle topology if one router goes down the others should be able to communicate to each other.
If that’s not the case and it’s something like A-B-C but A should not connect to C you can set B as an access point with wds and A and C as stations/clients for B, but if B goes down so does the link between A and C.
an interesting article i found is this http://wiki.mikrotik.com/wiki/Mesh_wds