OK, I got my answer from Wowza. It now works. Over the past three weeks, I was being told to refer to the documentation for my answers. It's good documentation and I have learned a lot. But, finally, I said, "Here are your instructions and here is the 50 character URL that I have built from your instructions. What's wrong with it?"
The reply today was, "the documentation is ambiguous" and here is what you need to do.
Finally, it works!