Hazelcast grid doesn't work with 'Start Port' 5900


we are running Payara inside a Kubernetes cluster with two replicas. The Hazelcast datagrid always contains only one pod. When we change the ‘Start Port’ to 4900 equal to the ‘DAS Start Port’ everything works as expected. So what is the reason for the default ‘Start Port’ 5900 ?

Thanks, Frank

I know there are some servers that use 5900, like vnc. Could that be your problem?

Hello John, thanks for your answer, but this is not the problem.