# Ignition OPC UA fault after every restart of my pc

**URL:** <https://forum.inductiveautomation.com/t/ignition-opc-ua-fault-after-every-restart-of-my-pc/112092>\
**Category:** Ignition\
**Created:** [November 11, 2025, 7:18am UTC](https://forum.inductiveautomation.com/t/ignition-opc-ua-fault-after-every-restart-of-my-pc/112092 "2025-11-11T07:18:53Z")\
**Posts on this page:** 4\
**Page:** 1

<div class="post-metadata">

**Author:** ![gandan89](https://avatars.discourse-cdn.com/v4/letter/g/6bbea6/32.png) [@gandan89](https://forum.inductiveautomation.com/u/gandan89)\
**Post date:** [November 11, 2025, 7:18am UTC](https://forum.inductiveautomation.com/t/ignition-opc-ua-fault-after-every-restart-of-my-pc/112092/1 "2025-11-11T07:18:53Z")

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Im experiencing this OPC UA connection issue after every restart of my pc. Every time I have to delete my OPC connection and create a new to fix this issue. Kindly help to resolve this issue.

Alarm log:

UaException: status=Bad\_ConnectionRejected, message=io.netty.channel.AbstractChannel$AnnotatedConnectException: Connection refused: getsockopt: DESKTOP-DELL/192.168.34.168:62541  
at org.eclipse.milo.opcua.stack.transport.client.tcp.OpcTcpClientTransport$ClientChannelActions.lambda$connect$0(OpcTcpClientTransport.java:182)  
at io.netty.util.concurrent.DefaultPromise.notifyListener0(DefaultPromise.java:603)  
at io.netty.util.concurrent.DefaultPromise.notifyListeners0(DefaultPromise.java:596)  
at io.netty.util.concurrent.DefaultPromise.notifyListenersNow(DefaultPromise.java:572)  
at io.netty.util.concurrent.DefaultPromise.notifyListeners(DefaultPromise.java:505)  
at io.netty.util.concurrent.DefaultPromise.setValue0(DefaultPromise.java:649)  
at io.netty.util.concurrent.DefaultPromise.setFailure0(DefaultPromise.java:642)  
at io.netty.util.concurrent.DefaultPromise.tryFailure(DefaultPromise.java:131)  
at io.netty.channel.nio.AbstractNioChannel$AbstractNioUnsafe.fulfillConnectPromise(AbstractNioChannel.java:326)  
at io.netty.channel.nio.AbstractNioChannel$AbstractNioUnsafe.finishConnect(AbstractNioChannel.java:342)  
at io.netty.channel.nio.NioEventLoop.processSelectedKey(NioEventLoop.java:784)  
at io.netty.channel.nio.NioEventLoop.processSelectedKeysOptimized(NioEventLoop.java:732)  
at io.netty.channel.nio.NioEventLoop.processSelectedKeys(NioEventLoop.java:658)  
at io.netty.channel.nio.NioEventLoop.run(NioEventLoop.java:562)  
at io.netty.util.concurrent.SingleThreadEventExecutor$4.run(SingleThreadEventExecutor.java:998)  
at io.netty.util.internal.ThreadExecutorMap$2.run(ThreadExecutorMap.java:74)  
at java.base/java.lang.Thread.run(Unknown Source)  
Caused by: io.netty.channel.AbstractChannel$AnnotatedConnectException: Connection refused: getsockopt: DESKTOP-DELL/192.168.34.168:62541  
Caused by: java.net.ConnectException: Connection refused: getsockopt  
at java.base/sun.nio.ch.Net.pollConnect(Native Method)  
at java.base/sun.nio.ch.Net.pollConnectNow(Unknown Source)  
at java.base/sun.nio.ch.SocketChannelImpl.finishConnect(Unknown Source)  
at io.netty.channel.socket.nio.NioSocketChannel.doFinishConnect(NioSocketChannel.java:336)  
at io.netty.channel.nio.AbstractNioChannel$AbstractNioUnsafe.finishConnect(AbstractNioChannel.java:339)  
at io.netty.channel.nio.NioEventLoop.processSelectedKey(NioEventLoop.java:784)  
at io.netty.channel.nio.NioEventLoop.processSelectedKeysOptimized(NioEventLoop.java:732)  
at io.netty.channel.nio.NioEventLoop.processSelectedKeys(NioEventLoop.java:658)  
at io.netty.channel.nio.NioEventLoop.run(NioEventLoop.java:562)  
at io.netty.util.concurrent.SingleThreadEventExecutor$4.run(SingleThreadEventExecutor.java:998)  
at io.netty.util.internal.ThreadExecutorMap$2.run(ThreadExecutorMap.java:74)  
at java.base/java.lang.Thread.run(Unknown Source)

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<div class="post-metadata">

**Author:** ![Kevin.Herron](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/kevin.herron/32/7259_2.png) [@Kevin.Herron](https://forum.inductiveautomation.com/u/Kevin.Herron)\
**Post date:** [November 11, 2025, 7:23am UTC](https://forum.inductiveautomation.com/t/ignition-opc-ua-fault-after-every-restart-of-my-pc/112092/2 "2025-11-11T07:23:58Z")

</div>

Are you getting a new IP address when you restart? Is this the loopback connection to the local Ignition OPC UA server?

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<div class="post-metadata">

**Author:** ![gandan89](https://avatars.discourse-cdn.com/v4/letter/g/6bbea6/32.png) [@gandan89](https://forum.inductiveautomation.com/u/gandan89)\
**Post date:** [November 11, 2025, 7:27am UTC](https://forum.inductiveautomation.com/t/ignition-opc-ua-fault-after-every-restart-of-my-pc/112092/3 "2025-11-11T07:27:28Z")

</div>

Thanks for the support, No, the same IP.

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<div class="post-metadata">

**Author:** ![gandan89](https://avatars.discourse-cdn.com/v4/letter/g/6bbea6/32.png) [@gandan89](https://forum.inductiveautomation.com/u/gandan89)\
**Post date:** [November 12, 2025, 4:43am UTC](https://forum.inductiveautomation.com/t/ignition-opc-ua-fault-after-every-restart-of-my-pc/112092/4 "2025-11-12T04:43:35Z")

</div>

This is the fault after restarting my PC . Ignition OPC connection Fault.

Java.lang.Exception: session inactive: id=NodeId{ns=1, id=Session:1ebcef3e-5430-4c3a-a964-f027550888b3} name=ignition\_1762846493401

```
**at com.inductiveautomation.ignition.gateway.opcua.client.connection.OpcUaConnection$MiloSessionActivityListener.onSessionInactive(OpcUaConnection.kt:440)**

at org.eclipse.milo.opcua.sdk.client.session.SessionFsmFactory.lambda$configureActiveState$42(SessionFsmFactory.java:720)

at java.base/java.util.concurrent.CopyOnWriteArrayList.forEach(Unknown Source)

at org.eclipse.milo.opcua.sdk.client.session.SessionFsmFactory.lambda$configureActiveState$43(SessionFsmFactory.java:719)

at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source)

at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)

at java.base/java.lang.Thread.run(Unknown Source)

```