# OPC UA connection "unable to find valid certification path to requested target"

**URL:** <https://forum.inductiveautomation.com/t/opc-ua-connection-unable-to-find-valid-certification-path-to-requested-target/52006>\
**Category:** Ignition\
**Tags:** ignition80\
**Created:** [October 15, 2021, 6:28pm UTC](https://forum.inductiveautomation.com/t/opc-ua-connection-unable-to-find-valid-certification-path-to-requested-target/52006 "2021-10-15T18:28:58Z")\
**Posts on this page:** 1\
**Showing post:** 22

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**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:** [July 1, 2025, 10:50pm UTC](https://forum.inductiveautomation.com/t/opc-ua-connection-unable-to-find-valid-certification-path-to-requested-target/52006/22 "2025-07-01T22:50:20Z")

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Split this topic on July 1, 2025, 10:50pm UTC

A post was split to a new topic: [PLCnext Bad\_CertificateUseNotAllowed](https://forum.inductiveautomation.com/t/plcnext-bad-certificateusenotallowed/108018)

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_[View the full topic](https://forum.inductiveautomation.com/t/opc-ua-connection-unable-to-find-valid-certification-path-to-requested-target/52006)._