Hi Dennis,
It doesn't show up im the IoX list anymore (it did when I first got it with version 5.4.5), just my ISY994i and also I have tried to add it manually to IoX using both 8080 or 8443 ports see attached image. I can see it in my network and can also access it via SSH.
I have tried everything, Power button 10 times, SSH updates, power down, clear Java cache, downloaded start.jnlp multiple times, you name it... and I have read as many forum questions related to this issue as I could find.
I opened a ticket yesterday, but any insights would be appreciated.
Thanks