since Netsight upgrade from 5 to 6 (6.0.0.78) the Console cannot start, if Java Cache is disabled. After downloading and loading the console application (console.jnlp) an error occours "Unable to start application" with the Detail "com.sun.deploy.net.JARSigningException: Found unsigned entry in resource: http://netsight:8080/Clients/plugins/AclMgr/forms-1.0.5.jar"
Set Java Cache Config to default (Cache enabled) works around the problem.