So far as I can tell, it's impossible to pair an R7 to a Mac because the EOS utility is ancient. A Canon "product expert" posted in 2023 that Canon was working on it. It's mid-2025.
Now I'm going to offer a mea culpa. The VPN on the Mac, turned on because I'm presently out of the US, interfered with the pairing. VPNs can cause a lot of problems and I should have realized it was active.
In the end, with EOS Utility 3.19.0 I tried pairing the camera to the Mac a half-dozen times on the same wifi network and it failed each time, so I won't spend another minute thinking about it.
Here's the issue, with aid from Canon telephone support. While the Canon site says it has detected the Mac, it did not detect the OS, so I had to selected it from the second pull-down menu. After I saw that the Mac was detected I didn't even notice t...