Obtaining certificate chain for yang.ns02.us, one moment while we download the yang.ns02.us certificate and related intermediate certificates...
Refreshing certificate chain and revocation status for yang.ns02.us, one moment while we re-check the yang.ns02.us certificate and related intermediate certificates...
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Revocation check via OCSP and CRL for yang.ns02.us failed
Sorry, the request for yang.ns02.us could not be completed...
We could not load the certificate for yang.ns02.us, it might not exist or we could not reach the server, complete the TLS handshake, etc.
Revoked certificates can't and should not be trusted, these certificate will cause errors like "NET::ERR_CERT_REVOKED" in browsers and expose a security risk.