Error: A certificate chain could not be built to a trusted root authority

Error: A certificate chain could not be built to a trusted root authority

Symptom

Certificate errors are returned when validating update content downloaded by Lenovo Patch.

Error details contain: "A certificate chain could not be built to a trusted root authority"

Cause

Specific URLs are required to be allowed through firewalls, proxies, and web filters to verify/validate certificates and certificate chains on files and content from Lenovo Patch.

Solution

Ensure the Certificate Verification URLS from the Lenovo Patch: URL Exception List and Certificate Verification Sites Knowledge Base Article are allowed through firewalls, proxies, and web filters.