Hello It doesn't look like we have released a firmware update for that system since 2013. Browser and applet security has increased a lot in the last few years. You may be able to lower security enough for it to work. If you need to use insecure software to manage your systems then it would be best to run them on a virtual machine that doesn't contain anything else. I would either use a newer browser and turn off/reduce security or use an older browser and Java. Whichever you do it would be best to do it in a virtual machine or system that performs no other function in order to reduce risk. Thanks
Via Chrome or Firefox or Edge browser I am able to access the KVM but when I select a server to launch the console I receive Java not detected ..... viewer requires Java Webstart to run - I installed the latest viewer. I added the HTTPS & HTTP address to the Security tab in the Java console. I cleared out the browser cache. The certificate has a date of 2014 - I imported the cert via the Tools menu on the KVM interface.  The above does not resolve the Java Viewer launch issue. I am thinking the KVM may be EOL and no longer compatible with Java and or the old Cert is causing issues.  Anyone observed this issue? Any workaround?  Thanks Milty     
KVM 2161DS Java Webstart does not launch