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