ok...i made my connection between AP and RB...now...when i use the link...its all OK

linux router1 - AP -------> router board - linux router2

but when i power off the router board...and power it on...there is no connection from linux router 2 to linux router 1. when several minutes pass ( about 15 min) when i try to fix it somehow....it starts again...justt starts...i dont do shit...but its too slow...can anyone help me?