Canon EOS 80D - Manual (Page 495)

495
Troubleshooting Guide
 When using EOS Utility (EOS software), set [z5: Time-lapse movie]
to [Disable] (p.319).
 Install the EOS software on the computer (p.513).
 During a wireless connection, the camera cannot be connected to a
computer via an interface cable.
Computer Connection Problems
Communication between the connected camera and
computer does not work.
I cannot download images to a computer.