# OPCUA client error

**URL:** <https://discourse.nodered.org/t/opcua-client-error/58748>\
**Category:** General\
**Created:** [21 February 2022 13:23 UTC](https://discourse.nodered.org/t/opcua-client-error/58748 "2022-02-21T13:23:29Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![FabioT](https://avatars.discourse-cdn.com/v4/letter/f/e495f1/32.png) [@FabioT](https://discourse.nodered.org/u/FabioT)\
**Post date:** [21 February 2022 13:23 UTC](https://discourse.nodered.org/t/opcua-client-error/58748/1 "2022-02-21T13:23:29Z")

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Hi all,  
I'm working with a opcua server/client architecture in my nore-red app.  
At every deployment/restart I have 3 different errors, related to "client secure channel layer" as detailed in attached image.  
Being a novice with both node-red and opcua, I cannot understand what the reason is.  
Can anyone help me?  
Thank you  
FabioT

 ![image](https://us1.discourse-cdn.com/flex026/uploads/nodered/original/3X/0/6/066ec61f27f0d9c62740ed69e61f5b0749260a40.png)

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**Author:** ![Steve-Mcl](https://sea2.discourse-cdn.com/flex026/user_avatar/discourse.nodered.org/steve-mcl/32/4826_2.png) [@Steve-Mcl](https://discourse.nodered.org/u/Steve-Mcl)\
**Post date:** [21 February 2022 13:50 UTC](https://discourse.nodered.org/t/opcua-client-error/58748/2 "2022-02-21T13:50:05Z")

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As the terms "keepAliveManger" and "client secure channel layer" dont show up on the forum, I would suggest you have a read through the nodes [existing issues](https://github.com/mikakaraila/node-red-contrib-opcua/issues) - see if anyone has had this and solved it.

If not, then raise an issue on the repo - include information like the nodejs version, the node-red version etc.

Also, please feedback your findings to the forum for future readers.

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**Author:** ![system](https://us1.discourse-cdn.com/flex026/uploads/nodered/original/1X/d073cd938eafa2e558d7c2cd59003b3ef4963033.png) [@system](https://discourse.nodered.org/u/system)\
**Post date:** [22 April 2022 13:51 UTC](https://discourse.nodered.org/t/opcua-client-error/58748/3 "2022-04-22T13:51:06Z")

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