We have a hosted feature service configured with a webhook created within AWS (API Gateway endpoint as payload URL, Lambda to execute code). When creating new features, intermittently the webhook does not trigger. We do not see anything on the AWS side, so it's not even reaching the payload URL. In the ArcGIS Server logs, we only see the following error, with no other information even in DEBUG mode:
<Msg time="2025-08-12T11:51:03,749" type="SEVERE" code="30204" source="Admin" process="8616" thread="1" methodName="" machine="<machine name>" user="" elapsed="0.0" requestID="">Webhook log: Calling webhook URL "https://<API ID>.execute-api.us-gov-west-1.amazonaws.com/execute" failed.
Exception: Connection reset.</Msg>
After error is seen, we create a new feature on the feature service in the exact same way, and then payload is sent as expected.
I see this error repeat 3 times, which lines up with the Number of Notification Attempts setting in :6443/arcgis/admin/services/webhooks/settings. I tried increasing the timeout value to 30 seconds, but still seeing these intermittent issues.
Any help diagnosing this would be really appreciated.
