Yes, I opened a ticket, then closed it as I found the solution (along with the issue).
I grabbed the flash file and because I could connect with the Updater, simply flashed from the local file.
Once I did that, which brought the device up from 2.4 to 2.71, the HX Edit software connected.
Moral of the story - if you are buying an HX Effects with something older like my 2.4 firmware, don't even bother with the HX Edit part until you DL the flash and update through Updater. Then in theory, or my experience, the Edit will/should work. Suggest it's something to do with such a large gap in the firmware versions.