From a support forum: "I was getting this on several computers and I found out that all of them were having "Automatic Updates" service disabled. I changed the service mode to automatic through a group policy and now the machines are scanning and sending the reports perfectly."
Build a great reporting interface using Splunk, one of the leaders in the Security Information and Event Management (SIEM) field, linking the collected Windows events to www.eventid.net.
Obtain enhanced visibility into Cisco ASA firewall logs using the free Firegen for Cisco ASA Splunk App. Take advantage of dashboards built to optimize the threat analysis process.