Ignition OPC UA Server Connection Faulted On Backup

I have an issue where my backup gateway default Ignition OPC UA Server connection is faulted. The master gateway connection is connected and functioning as expected. Version 8.1.33

This is the message that I get;
io.netty.channel.AbstractChannel$AnnotatedConnectException: Connection refused: no further information: localhost/127.0.0.1:62541