dynamixel_control no motor found /dynamixel mx-64AR, usb2dynamixel

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Hi guys, I am trying to use the new robotis servo: dynamixel MX-64AR, but I cannot find the servo both in win8 and ubuntu 14.04. in win8, I tried to use RoboPlus Wizard to search all the bps, nothing found... in Ros, I run: roslaunch my_dynamixel_tutorial controller_manager.launch, and I got:

SUMMARY
========

PARAMETERS
 * /dynamixel_manager/namespace: dxl_manager
 * /dynamixel_manager/serial_ports/pan_tilt_port/baud_rate: 57142
 * /dynamixel_manager/serial_ports/pan_tilt_port/max_motor_id: 25
 * /dynamixel_manager/serial_ports/pan_tilt_port/min_motor_id: 0
 * /dynamixel_manager/serial_ports/pan_tilt_port/max_motor_id: 25
 * /dynamixel_manager/serial_ports/pan_tilt_port/update_rate: 20
 * /rosdistro: indigo

 * /rosversion: 1.11.10

NODES
  /
    dynamixel_manager (dynamixel_controllers/controller_manager.py)

auto-starting new master
process[master]: started with pid [23510]
ROS_MASTER_URI=http://localhost:11311

setting /run_id to c01c22cc-d87a-11e4-9915-001aa0aa3777
process[rosout-1]: started with pid [23523]
started core service [/rosout]
process[dynamixel_manager-2]: started with pid [23540]
/opt/ros/indigo/lib/python2.7/dist-packages/dynamixel_driver/dynamixel_serial_proxy.py:92: SyntaxWarning: The publisher should be created with an explicit keyword argument 'queue_size'. Please see http://wiki.ros.org/rospy/Overview/Publishers%20and%20Subscribers for more information.
  self.motor_states_pub = rospy.Publisher('motor_states/%s' % self.port_namespace, MotorStateList)
/opt/ros/indigo/lib/python2.7/dist-packages/dynamixel_driver/dynamixel_serial_proxy.py:93: SyntaxWarning: The publisher should be created with an explicit keyword argument 'queue_size'. Please see http://wiki.ros.org/rospy/Overview/Publishers%20and%20Subscribers for more information.
  self.diagnostics_pub = rospy.Publisher('/diagnostics', DiagnosticArray)

INFO] [WallTime: 1427898245.997934] pan_tilt_port: Pinging motor IDs 0 through 25...

[FATAL] [WallTime: 1427898248.149759] pan_tilt_port: No motors found.

and I am sure of this :

ls -l /dev/ttyUSB0 

crw-rw-rw- 1 root dialout 188, 0  4月  1 22:51 /dev/ttyUSB0 ....

About the HW, I use usb2dynamixel, RS485 -4p interface, and the switcher is in the middle.

the power support is a takasago ex-375l, I set output as 12.5 v, 0.4A, the motor led flashed when it's powered on.

And I had checked the 4p cable, all the four lines are good.

About the ros version;

rosversion dynamixel_controllers

0.4.0

$ dpkg -p ros-indigo-dynamixel-controllers | grep Ver

Version: 0.4.0-0trusty-20150305-1931-+0000

about the bps in the launch file, the parameter of the servo is link:here, the default bps of mx-64ar should be 57142.... I had tried 57142, 57143, 57142.9 and 1000000, no one works.

I am really screwed here....................... HEEEEEEEEEEEEELLLLLLLLLLLPPPPPPP!