Alert Central for a few months with no problems then about a week ago, NPM stopped sending alerts to AC. The subscriptions entry shows 1300 messages failed. I can ping the AC IP and name from the Orion server. I changed the subscription record from using the IP to using the FQDN, still nothing. I don't know how to troubleshoot this further at this point.
On the Orion server I tried going to the URL: http://xx.xx.xx.xx/index.html/Orion/AlertNotification/OnIndication
HTTP Status 404 - /index.html/Orion/AlertNotification/OnIndication
type Status report
message/index.html/Orion/AlertNotification/OnIndication
descriptionThe requested resource is not available.