EventReporter Event ID 11226: SNMP listener shutdown wake fallback#

Answer#

The local wake descriptor could not be used, so shutdown uses a bounded receive wait.

Event details#

Event ID: 11226
Severity: Warning
Component: SNMP trap listener
Windows Event Log source: Adiscon EvntSLog
Available since: 26.08
Message pattern: The SNMP listener wake descriptor is unavailable; shutdown is using the bounded select fallback. Additional detail: {event_detail}

Possible causes#

Local UDP socket setup or send failed, or the descriptor set reached its capacity.

Immediate checks#

Check local socket resource usage and descriptor pressure, then restart the service.

Detailed procedures#

Verify listener binding and Windows Firewall rules — Confirm effective address, port, transport, owning process, and inbound policy.
Collect an Event ID and neighboring product events — Preserve the complete event and the product events immediately before and after it.
Export configuration and collect a bounded debug log — Create a text configuration export and time-bounded debug capture, then disable debugging.

Verify the result#

Stop an idle SNMP trap listener and confirm that Event ID 11226 does not recur and shutdown completes promptly.

Evidence to collect#

The complete Windows Application Event Log entry.
The SNMP listener configuration and debug log covering shutdown.

Escalation#

If the event continues after the detailed procedures, collect the listed evidence and contact Adiscon Support.