# NodeRed OPC UA Client always "Closed"

**URL:** <https://discourse.nodered.org/t/nodered-opc-ua-client-always-closed/50106>\
**Category:** Industrial\
**Created:** [24 August 2021 09:58 UTC](https://discourse.nodered.org/t/nodered-opc-ua-client-always-closed/50106 "2021-08-24T09:58:07Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![SE\_Val](https://avatars.discourse-cdn.com/v4/letter/s/67e7ee/32.png) [@SE\_Val](https://discourse.nodered.org/u/SE_Val)\
**Post date:** [24 August 2021 09:58 UTC](https://discourse.nodered.org/t/nodered-opc-ua-client-always-closed/50106/1 "2021-08-24T09:58:07Z")

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Hello,

I have some problems connecting the NodeRed OPC UA client to my OPC UA server.

![image](https://us1.discourse-cdn.com/flex026/uploads/nodered/original/3X/b/e/be9f237bc71fb73c02abf35a8fa695bc5ee9c774.png)

As you can see, my OPC UA Client is closed but I dont understand why...

 ![image](https://us1.discourse-cdn.com/flex026/uploads/nodered/original/3X/c/c/cca5de38c1c8edf9e26412e906fa531df97efe83.png)  
I'm sure of the address (I can connect myself to the server using UAExpert) and the server private key is present inside the PKI folder like asked by the information note. I'm also sure about the User/PWD combination and the Security Settings.

But I dont know why I'm stuck with a closed OPC UA Client... If one of you have an idea or had the same issue.

Best Regards,  
Valentin

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<div class="post-metadata">

**Author:** ![system](https://us1.discourse-cdn.com/flex026/uploads/nodered/original/1X/d073cd938eafa2e558d7c2cd59003b3ef4963033.png) [@system](https://discourse.nodered.org/u/system)\
**Post date:** [23 October 2021 09:59 UTC](https://discourse.nodered.org/t/nodered-opc-ua-client-always-closed/50106/2 "2021-10-23T09:59:07Z")

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