I did; the only thing auto-filled was the username: envoy, which, to get it working, was replaced with enlighten username.
Unfortunately, the issue that kept me from getting it working was “operator malfunction” I had written down my serial number incorrectly.
The simple path to success for me was.
Host: IP (digits only, no protocol[HTTP])
Username: enlighten username (email address)
Password: enlighten password
Serial #: IQ Gateway Serial Number (Login to
enlighten menu/system/devices/IQ Gateway)
Use Enlighten: checked
And it worked
Chas