# OPC-UA Connecting failing(BadSecureChannelClosed/ Bad\_SecurityChecksFailed) - SAP Production connector Client to Ignition server

**URL:** <https://forum.inductiveautomation.com/t/opc-ua-connecting-failing-badsecurechannelclosed-bad-securitychecksfailed-sap-production-connector-client-to-ignition-server/115203>\
**Category:** Ignition\
**Created:** [April 22, 2026, 2:21pm UTC](https://forum.inductiveautomation.com/t/opc-ua-connecting-failing-badsecurechannelclosed-bad-securitychecksfailed-sap-production-connector-client-to-ignition-server/115203 "2026-04-22T14:21:02Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![amsinghrathore](https://avatars.discourse-cdn.com/v4/letter/a/46a35a/32.png) [@amsinghrathore](https://forum.inductiveautomation.com/u/amsinghrathore)\
**Post date:** [April 22, 2026, 2:21pm UTC](https://forum.inductiveautomation.com/t/opc-ua-connecting-failing-badsecurechannelclosed-bad-securitychecksfailed-sap-production-connector-client-to-ignition-server/115203/1 "2026-04-22T14:21:02Z")

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Hello,  
I am trying to connect SAP Manufacturing Connectivity (Production Connector) as an OPC-UA client to Ignition OPC-UA server, but the connection is failing.  
**Errors:**

-BadSecureChannelClosed

-Bad\_SecurityChecksFailed

The agent is not starting and connection is not established.  
Looks like a certificate or security policy issue.  
What would I check to resolve this.

Thanks!