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  1. Forum
  3. Discussions
  5. QuickOPC-UA in .NET
  7. Connections, Reconnections, Certificates
  9. Cannot access certificate private key

Cannot access certificate private key

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08 Oct 2024 11:42 #13210 by AlexSFromG
Replied by AlexSFromG on topic Cannot access certificate private key
Hello Support,

thank you for your kind response.

I finally could solve the situation by making a copy of the folder x:\ProgramData\OPC Foundation\CertificateStores\MachineDefault\private

from a machine that works properly to the machine which refuses to work.

I don't know why on this machine the certificates had not created.

Perhaps do you know the answer and can leave ist for people who are looking for a silimlar solution.

Thank You

Alex

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08 Oct 2024 07:35 #13209 by support
Replied by support on topic Cannot access certificate private key
Hello.

Have you checked the certificate stores whether the private key is actually there (if you do not know how, I can provide guidance)?
If you are using self-signed certificate, it might be wort trying to delete the existing certificate and then let the program re-generate it (again, I can help with it if you need).

Regards

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08 Oct 2024 05:19 #13207 by AlexSFromG
Cannot access certificate private key was created by AlexSFromG
Hello everybody,

I never had difficulties to set up QuickOPC for UA on my terminals.

But one Terminal refuses to work with the following errors:

OPC-UA operation failure wirt herror code -213850216 (0x80890000) occurred, originated from opc.ua.configuration. The inner OPC-UA service exceptione with service result "BadConfigurationError" contains details about the problem. OpcLabs.EasyOPC.UA.UAServiceException; OPC-UA service result - Cannot access certificate private key: Subject=CN= ....


Are there any known solutions to this message?

Best regards
Alex

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Moderators: support
  1. Forum
  3. Discussions
  5. QuickOPC-UA in .NET
  7. Connections, Reconnections, Certificates
  9. Cannot access certificate private key
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