EventReporter Event ID 11212: System exception while compiling an NT Event Log expression#

Answer#

A protected system exception handler caught a Windows exception in this path.

Event details#

  • Event ID: 11212

  • Severity: Error

  • Component: Event Log Monitor service

  • Windows Event Log source: Adiscon EvntSLog

  • Available since: 26.07

  • Message pattern: System exception while compiling an NT Event Log expression. Additional detail: {event_detail}

Possible causes#

  • The configured Windows Event Log channel is missing, disabled, inaccessible, or no longer matches the saved collection position.

  • The service account cannot read the channel or provider metadata, or the channel was cleared or recreated.

Immediate checks#

  1. Identify the exact channel, collection mode, saved position, and service account.

  2. Confirm that Windows reports the channel enabled and readable in the service-account context.

  3. Use one safe test event to verify collection before resetting any saved position.

Detailed procedures#

Verify the result#

Repeat or monitor the affected operation and confirm that Event ID 11212 does not recur and that event log monitor service processing continues.

Evidence to collect#

  • The complete Windows Application Event Log entry, including all event detail.

  • The product name, exact version, service account, and event timestamp with time zone.

  • A configuration export and debug log covering the same time window, with secrets removed.

Escalation#

No safe general self-service repair is available for this event. Follow the escalation evidence procedure above and contact Adiscon Support.