Hello,

Thank you for your answer. I forgot about the blog and focused in the pdf enclosed in the evaluation bundle. I found that the evaluation I received (prosys-opc-ua-sdk-for-java-4.5.2-1343-evaluation) did not include the library prosys-opc-ua-sdk-client-server-evaluation .jar So I search for it and found a bundle also evalution that included it prosys-opc-ua-sdk-client-server-evaluation-4.3.0-1075 exactly.
I created another basic app and the result I get is exactly the same com.prosysopc.ua.client.ConnectException: Failed to retrieve endpoints. The server is not available: opc.tcp://DESKTOP-CRB8L79:53530/OPCUA/SimulationServer ServiceResult=Bad_ConnectionRejected (0x80AC0000) “Could not establish a network connection to remote server.”
This is the code I am using.
UaClient client = null;
String result = null;
try {
client = new UaClient(“opc.tcp://DESKTOP-CRB8L79:53530/OPCUA/SimulationServer”);
// ApplicationIdentity applicationIdentity = new ApplicationIdentity();
ApplicationDescription appDescription = new ApplicationDescription();
// applicationIdentity.;
appDescription.setApplicationName(new LocalizedText(“WASignodeOPCUAClient”,
Locale.ENGLISH));
String android_id = Settings.Secure.getString(
getApplicationContext().getContentResolver(),
Settings.Secure.ANDROID_ID);
appDescription.setApplicationUri(“urn:” + android_id +”:UA:WASignodeOPCUAClient”);
appDescription.setProductUri(“urn:signode.com:UA:WASignodeOPCUAClient”);
appDescription.setApplicationType(ApplicationType.Client);

ApplicationIdentity identity = new ApplicationIdentity();
identity.setApplicationDescription(appDescription);

client.setApplicationIdentity(identity);

client.setTimeout(60000);
client.setSecurityMode(SecurityMode.NONE);
client.setUserIdentity(new UserIdentity());
client.connect();

When it reaches the client.connect the exception rises.
Is there any problem that I am not able to see.
Thank you in advance

Hello,

I start the Simulation server on my computer, then I copy the conection address (ua tcp) into my code in Adroid and run the program without stopping the server (both programs are running in my computer) and I get always the same result com.prosysopc.ua.client.ConnectException: Failed to retrieve endpoints. The server is not available: opc.tcp://DESKTOP-CRB8L79:53530/OPCUA/SimulationServer ServiceResult=Bad_ConnectionRejected (0x80AC0000) “Could not establish a network connection to remote server.”
I have also tried the Local discory Server opc.tcp://localhost:4840 but the result again does not change
When executed the Prosys OPC UA Client connects with the Simulation server
I am completly lost in what can be the problem
Thank you for your comments