Cannot connect to SIMATIC S7-1500

[MarcelloMagni]

As title says,
i try to create the following connection:

OpcUaClient client = OpcUaClient.create(getUrlConnection(), endpoints -> endpoints.stream() .filter(e -> e.getSecurityPolicyUri().equals(SecurityPolicy.None.getUri())).findFirst(), configBuilder -> configBuilder.build()); UaClient clientFuture = client.connect().get();

but the following execution exception is thown:

status=Bad_Timeout, message=io.netty.channel.ConnectTimeoutException: connection timed out

The machine uses a NAT and the manufacturer suggests me to change the URL: https://support.industry.siemens.com/cs/document/109766709/what-are-the-causes-when-connection-to-an-opc-ua-server-fails-?dti=0&lc=en-HK

How can i achieve this? Isn't the connection enstablished in the correct way?
The getUrlConnection() method returns the local IP and the Exception is thrown on another IP.

[kevinherron]

If the server responds with endpoints that contain hostnames and/or ports that you cannot resolve or reach as a client you can replace them as described in this post: https://stackoverflow.com/a/40555243/85927

[MarcelloMagni]

Thank you very much, using:

EndpointUtil.updateUrl

I was able to establish the connection.
Sorry for not having found that post earlier.