I’m sorry to hear about the trouble.
Unless there is physical damage from shipping, this set of symptoms most usually indicates that the USB driver may have failed to install correctly.
Please download and try running this installer:
https://github.com/evil-mad/EggBot/releases/download/2.7.1/UBWDriverInstaller_v20.exe
Please grant the installer permission if it asks, and pay special attention to whether any error messages are generated. Once you have done so, see if you can establish communication to the machine.
