The controller displayed NFZ
The app, when I went to unlock, used some variation of 'no-fly zone'.
The actual zone I was flying in, well attempting to fly, is inside the Authorization Zone for the Iroquois municipal airport (CNP7).
I checked the Transport Canada map, the Drone Pilot Canada app and NOTAMs. I called the airport to see if there was impending traffic.
The airport manager was very pleasant, but completely unaware of the regs that apply to sRPAS flights.
It is possible that the area has been temporarily flagged as no-fly, although there were no notices. There is a nest with three fledgling ospreys about 100 metres from where I was trying to launch.
Before anyone gets riled up, I was not going to harass the chicks. I was there with an entirely different mission in mind. My plan was to head straight to 400AGL (about 395 above the nest's height) and circle out well away from the nest to get where I wanted to be.
While I was trying to unlock (and doing a bit of quiet cursing), the reason I was there came and went.
The hour-plus drive each way wasn't a total loss, though. My secondary (no-flying) mission was to get some photos and footage - with my carry-around camera, not with the drone - of the youngsters in the nest. It turns out that they were trying out their wings and doing short takeoff and landing flights. I suspect the nest will be empty in a couple of days, so I'm actually pretty happy about the timing.
I've been using online forums for a VERY long time. I'm well aware that some people feel a sense of personal validation when they are able to point out the most insignificant flaws in messages left by others. When that happens, I tend to think of Shakespeare - "It is a tale told by an idiot, full of sound and fury, signifying nothing." (That partial quote is really out of context and doesn't put forward the deeper meaning of the soliloquy.)
Anyway, I made the original post as a way to vent.
I appreciate those who supplied information, and tried to be helpful.
To the trolls, another quote: "Go away before I taunt you a second time."
@sar104: I gather you're a fan of Dragnet?