Obtaining certificate chain for sipdir02.lync.oncirque.net, one moment while we download the sipdir02.lync.oncirque.net certificate and related intermediate certificates...
Refreshing certificate chain and revocation status for sipdir02.lync.oncirque.net, one moment while we re-check the sipdir02.lync.oncirque.net certificate and related intermediate certificates...
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Revocation check via OCSP and CRL for sipdir02.lync.oncirque.net failed
Sorry, the request for sipdir02.lync.oncirque.net could not be completed...
We could not load the certificate for sipdir02.lync.oncirque.net, 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.