If you try to login in to the Universal Management Server by using the UMS Console and you receive a SSL Handshake error this mostly means: An other service is running at the UMS Console connection port (default: 8443).
Background: Port 8443 is used by the Apache TomCat Webserver that comes with the IGEL Universal Management Suite, also a bunch of other solutions are using the Apache TomCat Server (VMWare, Citrix Licensing, some Anti Virus solutions, Software deployment solutions and much more). The Port can't be used with two Applications at the same time and this is the issue.
To fix this you have 3 Options:
1) Install the UMS Server on an other Server where no other Service is using Port 8443
2) Disable the non IGEL service/daemon that occupies Port 8443
3) Open the IGEL Universal Management Suite Administrator (not Console!!!), in the top bar select the Ports Tab. Here you can modify the GUI-Serverport setting from 8443 to any other FREE port. Now click on apply and close the UMS Administrator. Restart the IGEL UMS service/daemon or the complete server and try to reconnect again thru the console by using the new configured port. It should work now...
In general it's not recommended to run two different Apache TomCat instances at the same time on a Server!