"If the Admin Console closes automatically,....". (This is from the troubleshooting section of the UDI Wiki). This exact problem arose when I tried to use my console recently, after several months of non-use, and it took me about 3 hours to solve. I use Kaspersky security and tried the approach described in "Configure Firewall - Kaspersky" for it, with no success. At the time I did not know what exact website address to use. The link example in "Configure Firewall - Kaspersky" (http://*.example.com/*) provided no help because it did not lead to anything nor did it describe what my website address would look like. I tried a few possibilities, to no avail. I subsequently turned off my firewalls and found that the problem still existed. So I decided it wasn't a firewalll problem. Somewhere in a saved online discussion, I read about adding a URL to the ISY finder. It advised that the added URL should include port numbers. Then I had to struggle to find where the port numbers were identified. I learned they were stored in my UDI 994i configuration. Of course, being unable to open the Admin Console, I could not access them. I found an 8 year old picture of my configuration that had the port numbers, and used them and they solved the problem. Perhaps this approach would help someone else. A picture of my modiifed ISY finder is enclosed.
20201121 Broken URL causing Admin shutdown - fix.docx