Since the program works with multiple types of Autel platforms, I would first make sure that your specific platform is the one selected on the opened program before connecting your device to the PC, and that the PC that the program is installed on is the one that your network printer is directly connected to.
If it doesn't work, then delete what you installed from the CD, and download the Maxi PC suite from Autel's server and install it. With my older DS708 , I used to remove the SD card from device and put it in the USB card reader and plug reader into the PC after the program was opened.
https://www.auteltech.com/download.jhtml