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