After a couple of months of being unable to access the admin console due to the above issues (failed on three Win10 systems and Server 2012, multiple browsers and multiple Java downloads etc.), the advice here got me running.
Then I tried it on a Surface Pro 4. What a disaster! The combination of modest screen size and high resolution give me mostly empty screen with what looks to be about 4-point type. I can't read it with a magnifying glass! In case you think I am exaggerating, I'll attach a screen shot (if this blog supports that--apparently not)You guys need to find a way to scale the display.
After the experience of the last few months, and now this, I am not at all convinced that a Java based IDE is the way to go. And, partially as a result, I'm not at all sure ISY is the way to go.