Event ID - 21138

Event Id21138
SourcePOP Intrusion Detection Filter
DescriptionThe connectivity verifier "1" reported a slow connection to 2. The specified connectivity response threshold was 3 msec, and the monitored response time was 4 msec.
Event InformationAccording To Microsoft:
The connection to the server succeeded, but the time used to verify the connection took longer than the response connectivity threshold specified for this connectivity verifier.

Resolution:
Verify that there are no networking problems, and that the specified destination server is not too busy to handle the connectivity request. If this error is persistent, consider raising the connectivity verifier threshold.
Reference LinksMicrosoft product: Internet Security and Acceleration Server Version: 4.0.3443.594 Event Source: POP Intrusion Detection Filter Event ID: 21138

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