Repeater

Question

Hi, i buy this Access point, if it work like Access point all is ok, but the problem is when i want to use it how Repeater.....didn't work !!!!!! with another router/access point ...i try to connect it with another 3com officonnect use how access point and WORKS !!!! router/access point - 3com (repeater) don't work router---- 3com access point -- 3 com (repeater) work Why i can't work it with repeater of another brand of access point ?