I just built my laseraxe laser engraving machine. I have installed the driver CH341SER.INF and software CNCC 2019 and the CNCC software will not connect. I have also tried to install the software CNCC V2.53 and also can't connect to the laseraxe machine. I received the message "COM4Did not make the right response. the connection has been disconnected." What am I doing wrong? Shouldn't it work? Does this sound like I have a defective control board?