Hi, I have a pair of MDS TransNet 900, One is set as master, and another is set as remote, I use Hyper Terminal on two computer to test the radio communication, Data can only go from A Radio to B Radio, no matter A is Master/B is Remoter, or A is Remote /B is master. But the TxD/Rxd on A/B are both light on/off correctly, What cause this probleum? Thanks,