Awesome! I'm glad to hear that resolved the issue. You're welcome re the help - that's why I'm here. :)

As something of an aside, incidentally I was just speaking with a colleague about creating a doc page for appliances that require a domain or URL to be set. As you've discovered, many will sort of work if you connect via a URL other than the one set at firstboot. But all of them will have some level degree of problem. It just didn't occur to me that your issue was related to that same discussion...

Anyway, good luck with it all.