Pairing via infrastructure (Airport) worked fine. Pairing via ad hoc network failed, however. Pairing on the Mac starts up OK and recognizes the 70d. When the camera is selected, window comes up advising one to follow instructions on 70d LCD screen...
The problem was with the: EOS 70D (w)Wi-Fi FunctionInstruction Manualthat came with the camera. The instructions for setting up an ad hoc network are not at all clear and left me quite confused. I turned instead to: EOS Step-by Step Setup GuideWirele...