Jmeter Distributed Load Test (5.6.3)

### Expected behavior

JMeter Listeners on maser machine not showing mercies from slave

### Actual behavior

When running JMeter Distributed Load Test. The Slave machine jmeter- server logs shows below exception
Exception invoking listener on threadFinished
java.rmi.connectionException:Connection refuse to host:xxx.xx.xxx.200; nested exception is java.net.connectionException
connection timed out
JMeter Version:5.6.3
JDK: 1.8

### Steps to reproduce the problem

Configure JMeter Distributed Load Test. Ome Maser and One Slave

### JMeter Version

5.6.3

### Java Version

JDK 1.8

### OS Version

_No response_