Connection Disruptions

In the event of agent connectivity disruption in Tenable Vulnerability Management, the agent tests connectivity approximately every 30 minutes.

Once connectivity is restored, the agent attempts to upload the scan result. After three failed upload attempts, the agent stops attempting.

• When using a scan window, once an agent completes a scan, it uploads its scan results. As long as the window is active, Tenable Vulnerability Management accepts the results. If the agent fails to upload its scan results during the window, the results are discarded. The agent re-scans and re-uploads during the next window.

• When using a triggered scan, once an agent completes a scan, it uploads its scan results. If there are connectivity interruptions during transmission, the agent waits until connectivity is restored and attempts to upload the scan result. If the agent fails to upload the result three times, the agent re-scans and re-uploads the results upon the next trigger.

  An agent that is offline for an extended time continues to scan if the trigger is met, replaces the previous scan results, and uploads the results once connectivity is restored.

  Tip: You can use the Offline Agent Scan Trigger Execution Threshold agent setting configure the number of days an agent can be offline before it stops executing triggered scans. For more information, see Modify Remote Agent Settings .