Obtaining certificate chain for cbitraining.web.illinois.edu, one moment while we download the cbitraining.web.illinois.edu certificate and related intermediate certificates...
Refreshing certificate chain and revocation status for cbitraining.web.illinois.edu, one moment while we re-check the cbitraining.web.illinois.edu certificate and related intermediate certificates...
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Revocation check via OCSP and CRL for cbitraining.web.illinois.edu failed
Sorry, the request for cbitraining.web.illinois.edu could not be completed...
We could not load the certificate for cbitraining.web.illinois.edu, 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.