With current browsers and java you cannot use remote console because of mismatching ssl-protocols.
1) Download JNLP-File
Login in your ELO with edge or IE and download the jnlp for remote console:
"Remote Control" > "Redirection"
Do not execute jnlp-file!
Open jnlp-file with editor and copy value of last line of <argument>.
2) Download JAR-File
Now download the JAR-file:
https://<server_ip_address>/cgi_bin/JavaRKVM.jar
Do not execute jar-file!
3) Start console
Start commandline (cmd.exe).
start console with:
java -jar Downloads/JavaRKVM.jar <server_ip_address> 2 0 <argument>
As <argument> use the string from (1)
Systems
Server