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Title
Failed to connect to Flexera Service Gateway with error "Could not create SSL/TLS secure channel."

Summary

Connecting to FSG gateway errors out with a "Could not create SSL/TLS secure channel" error

Question

Failed to connect to Flexera Service Gateway with error "Could not create SSL/TLS secure channel."

Answer

The root cause of this has to do with the SHA-1 certificate that the technology of our gateway uses. The BLOG link below explains how SHA-1 certificates are now handled and has additional information. IT comes down to some Windows updates will cause the "Could not create SSL/TLS secure channel" issue that being seen. Some of those updates are talked about in the BLOG link provided.

An update to our SHA-1 deprecation roadmap

Some additional Windows updates not listed in the BLOG that could cause this issue:
KB3179573



Additional Information

This issue has been fixed in Flexera Service Gateway version 2.0, so if you have an older version upgrading should resolve the issue.
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Failed to connect to Flexera Service Gateway with error "Could not create SSL/TLS secure channel."