Error in read/write settings from my XBee PRO S1? (device recognized by XCTU)

I connect my XBee to the port, where COM is configured as:
9600 rate, 8 bits, no parity, 1 stop bit, flow control: none.

XCTU finds my XBee (during the discovery Request Action Box appears, but after device reset it disapears).

Whenever I click read/write radio settings or try to update the firmware, Request Action box appears, but device reset doesn´t close it.

I already checked COM settings as here:

It is my begginning with XBee, I am not very experienced.