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Docusign Service Instance failing to register with error message: "The request was aborted: Could not create SSL/TLS secure channel"

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This article was created in response to a support issue logged with K2. The content may include typographical errors and may be revised at any time without notice. This article is not considered official documentation for K2 software and is provided "as is" with no warranties.
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Issue

Docusign Service instance is failing to register in early K2 Blackpearl version 4.6.11 and 4.7 RTM.

Error message: "The request was aborted: Could not create SSL/TLS secure channel."

Symptoms

TLS 1.0 support from DocuSign Demo environment has ended on 5/29/2018.

https://support.docusign.com/articles/000044869

Resolution

Upgrading to K2 Blackpearl 4.7 March CU with FP10 should resolve the issue.