TopicWindows Server →
0x800B0109 — Chain completed by an unapproved authority
What does this error mean?
The certificate submitted goes back to a root authority which is not approved by the system.
Probable causes
- root certificate absent
- incomplete intermediate chain
- Internal PKI not deployed to the post
- certificate submitted by a proxy TLS
Verification and resolution
- Show full chain of certificate
- Identify root and missing intermediates
- Compare with a functional position
- Deploy the certificate of trust by a controlled method
Precaution: N, never install an unknown root authority only to make disappear the alert.