Event ID - 21198

Event Id21198
SourceMicrosoft ISA Server Report Generator
DescriptionThe client certificate was revoked due to an invalid or missing Certificate Revocation List (CRL). The CRL may have expired and ISA Server was unable to download a valid CRL. Verify that the CRL download system policy configuration group is enabled and that there is connectivity to the CRL Distribution Points (CDPs).
Event InformationAccording to Microsoft

Cause:
The CRL may have expired and ISA Server was unable to download a valid CRL.
Resolution:
Verify that the CRL download system policy configuration group is enabled and that there is connectivity to the CRL Distribution Points (CDPs).
Reference LinksEvent Id: 21198 Source Id:Microsoft ISA Server Report Generator

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