XCTU is not able to detect xbee pro dev board

I downloaded XCTU v6.1.2, I have Xbee pro S2B module sit on Dev board, connected to PC via USB.
Click on “Discover” button on XTU, it failed to discover the radio module.
I also have a Xstick USB Xbee module, that worked, my XCTU is able to detect the module.
What could be the problem?

Thanks
Lei

OK, I figured it out myself, I manually added the device since the RF module is “programmable”, and I had to use 115200 baudrate for serial port.

Thanks
lei

What is the full part number of the XBee ZB module you have?