# Ignition OPC UA connection to Redzone RZLogger connection issues

**URL:** <https://forum.inductiveautomation.com/t/ignition-opc-ua-connection-to-redzone-rzlogger-connection-issues/113944>\
**Category:** Ignition\
**Tags:** ignition81\
**Created:** [February 12, 2026, 11:58pm UTC](https://forum.inductiveautomation.com/t/ignition-opc-ua-connection-to-redzone-rzlogger-connection-issues/113944 "2026-02-12T23:58:24Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![cfleitman](https://avatars.discourse-cdn.com/v4/letter/c/a587f6/32.png) [@cfleitman](https://forum.inductiveautomation.com/u/cfleitman)\
**Post date:** [February 12, 2026, 11:58pm UTC](https://forum.inductiveautomation.com/t/ignition-opc-ua-connection-to-redzone-rzlogger-connection-issues/113944/1 "2026-02-12T23:58:24Z")

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Note to Tech Support

We’re seeing an issue where the OPC UA connection connects, then drops, reconnects, and continues cycling repeatedly. Below is the relevant section of the rzlogger event log showing the connection, subscription setup, and the eventual timeout error:

```python
2026-02-12 15:46:38,715 INFO OpcUaDriver - Trying explicit discovery URL 'opc.tcp://localhost:62541/discovery'
2026-02-12 15:46:38,719 INFO OpcUaDriver - Found endpoint 'opc.tcp://localhost:62541 [http://opcfoundation.org/UA/SecurityPolicy#Basic256Sha256]'
2026-02-12 15:46:38,719 INFO OpcUaDriver - Using endpoint 'opc.tcp://localhost:62541 [http://opcfoundation.org/UA/SecurityPolicy#Basic256Sha256]'
2026-02-12 15:46:38,719 INFO CertificateGenerator - Loading keystore at C:\RZSOFTWARE\redzone-logger-opc.pfx
2026-02-12 15:46:38,719 INFO CertificateGenerator - Existing keystore found at C:\RZSOFTWARE\redzone-logger-opc.pfx
2026-02-12 15:46:38,799 INFO OpcUaDriver - Adding FaultListener...
2026-02-12 15:46:38,799 INFO OpcUaDriver - Adding SubscriptionListener...
2026-02-12 15:46:38,806 INFO CloudClient - [Success] [100ms] Pinged cloud module
2026-02-12 15:46:38,808 WARN ClientCertificateValidator$InsecureValidator - Skipping validation for Ignition OPC UA Server certificate
2026-02-12 15:46:38,821 INFO OpcUaDriver - Starting new subscription and re-monitoring items...
2026-02-12 15:46:38,837 INFO OPCServer - Found 7 subscribable tags...
2026-02-12 15:47:23,825 ERROR OpcUaDriver - Exception during subscription publish!
org.eclipse.milo.opcua.stack.core.UaServiceFaultException: status=Bad_Timeout, description=The operation timed out.
2026-02-12 15:47:23,825 INFO OpcUaDriver - Disconnecting Client...
2026-02-12 15:47:33,825 ERROR OpcUaDriver - Failed to disconnect()

```

The repeated Bad\_Timeout during subscription publish is what triggers the disconnect/reconnect cycle.

Please review and advise on next steps.

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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:** [February 12, 2026, 11:59pm UTC](https://forum.inductiveautomation.com/t/ignition-opc-ua-connection-to-redzone-rzlogger-connection-issues/113944/2 "2026-02-12T23:59:53Z")

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A Wireshark capture with security disabled on the connection is usually a good place to start.