I too have been having problems with the Admin Console. The isy finder finds the isy, but when i click on admin console (LAN) it doesn't load.
I am using Java ver. 8, 32 bit, update 341, on desktop with windows 10. My isy has firmware 4.9.0.
Please don't tell me to update firmware. I tried ver 5 once and none of my programs worked. Had to revert back to 4.9.0. Also, I went to UD wiki to get latest isy launcher file.
BTW I am able to use Admin console with my laptop which is using Java ver. 8, update 301 and windows 11.
Any Help would be appreciated.