OPC UA 连接被拒绝

Question

I am trying to connect my application to the Opc ua Server

but I get the following error:

Unable to connect because of error: Connection refused  
com.mendix.systemwideinterfaces.MendixRuntimeException: com.mendix.core.CoreException: java.util.concurrent.ExecutionException: UaException: status=Bad_ConnectionRejected, message=io.netty.channel.AbstractChannel$AnnotatedConnectException: Connection refused:

it's my first time to deal with opc ua,so I don't know what is the foucs of this problem.

fire wall checking and kepserver checking

Answer 1

io.netty.channel.AbstractChannel$AnnotatedConnectException: Connection refused:

You omitted part of the exception message, but this is a networking problem, it doesn't have anything to do with OPC UA yet.