With Ignition 7.4.2 (b953) i get an error when trying to connect form the UaExpert OPC-Client (using Version 1.2.1 164). I think this worked without problems when i last tried with 7.3.x.
Interestingly the connection works if i a connection to another Client (OPC UA .NET Client from Siemens) is already opened.
Here is the gateway stacktrace (The ‘End of stream reached’ warnings appear even when the connection is successfull):
INFO | jvm 1 | 2012/05/01 11:58:01 | WARN [TCPServerChannel ] [11:58:01,685]: Connection lost due to IOException.
INFO | jvm 1 | 2012/05/01 11:58:01 | java.io.IOException: End of stream reached.
INFO | jvm 1 | 2012/05/01 11:58:01 | at com.inductiveautomation.common.iosession.socket.AsyncSocketIOSession.run(AsyncSocketIOSession.java:95)
INFO | jvm 1 | 2012/05/01 11:58:01 | at java.lang.Thread.run(Thread.java:722)
INFO | jvm 1 | 2012/05/01 11:58:04 | WARN [CreateSessionService ] [11:58:04,409]: Returning ServiceFault for request: com.inductiveautomation.opcua.types.messages.CreateSessionRequest@1421fc5. StatusCode=StatusCode[0x80240000, Severity=Bad, Subcode=Bad_NonceInvalid]
INFO | jvm 1 | 2012/05/01 11:58:04 | DEBUG [CreateSessionService ] [11:58:04,409]: Error:
INFO | jvm 1 | 2012/05/01 11:58:04 | StatusCode[0x80240000, Severity=Bad, Subcode=Bad_NonceInvalid]: Bad_NonceInvalid
INFO | jvm 1 | 2012/05/01 11:58:04 | at com.inductiveautomation.xopc.server.core.services.session.CreateSessionService.executeInternal(CreateSessionService.java:56)
INFO | jvm 1 | 2012/05/01 11:58:04 | at com.inductiveautomation.xopc.server.core.services.session.CreateSessionService.executeInternal(CreateSessionService.java:27)
INFO | jvm 1 | 2012/05/01 11:58:04 | at com.inductiveautomation.xopc.server.core.services.AbstractService.execute(AbstractService.java:53)
INFO | jvm 1 | 2012/05/01 11:58:04 | at com.inductiveautomation.xopc.server.stack.AbstractUAServer$RequestServer.run(AbstractUAServer.java:69)
INFO | jvm 1 | 2012/05/01 11:58:04 | at com.inductiveautomation.ignition.common.execution.impl.BasicExecutionEngine$ThrowableCatchingRunnable.run(BasicExecutionEngine.java:526)
INFO | jvm 1 | 2012/05/01 11:58:04 | at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:471)
INFO | jvm 1 | 2012/05/01 11:58:04 | at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:334)
INFO | jvm 1 | 2012/05/01 11:58:04 | at java.util.concurrent.FutureTask.run(FutureTask.java:166)
INFO | jvm 1 | 2012/05/01 11:58:04 | at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:178)
INFO | jvm 1 | 2012/05/01 11:58:04 | at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:292)
INFO | jvm 1 | 2012/05/01 11:58:04 | at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1110)
INFO | jvm 1 | 2012/05/01 11:58:04 | at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:603)
INFO | jvm 1 | 2012/05/01 11:58:04 | at java.lang.Thread.run(Thread.java:722)
INFO | jvm 1 | 2012/05/01 11:58:04 | WARN [TCPServerChannel ] [11:58:04,409]: Connection lost due to IOException.
INFO | jvm 1 | 2012/05/01 11:58:04 | java.io.IOException: End of stream reached.
INFO | jvm 1 | 2012/05/01 11:58:04 | at com.inductiveautomation.common.iosession.socket.AsyncSocketIOSession.run(AsyncSocketIOSession.java:95)
INFO | jvm 1 | 2012/05/01 11:58:04 | at java.lang.Thread.run(Thread.java:722)