Managing how often specific data is scanned

To avoid unnecessary network traffic during non-agent based scanning, not all Windows computer data is rescanned all the time. As your computer's operating system does not change on a regular basis for instance, it makes sense not to rescan this data during every scan attempt. By default, operating system data is rescanned once every 3 days at most.

Each item that's scanned runs on its own schedule, which is called an "item interval" within Lansweeper. Examples of other scan items are: BIOS, memory, software, processor and video card information. Though Lansweeper sets a default configuration for your item intervals, it is possible to customize these values to suit your needs.

Only Windows computers have item intervals. There are no intervals for Linux, Unix or Mac computers, VMware servers or other network devices. These assets are always fully rescanned, during every successful scan.

Item intervals only dictate which data is updated when a Windows computer is actually rescanned. If a computer is no longer submitted for scanning, it will not be rescanned and its data will not be updated, regardless of what you set your intervals to.

To configure how often scan items are scanned, do the following:

1. Browse to the following section of the web console: Scanning\Scanned Item Interval
   
2. Place your cursor in the Refresh (X days) value of a particular scan item, make the desired change and hit Enter while your cursor is still present in the line to save the change.
   
   - A value of 5 means that, when a computer is rescanned, the specified data will only be updated if it hasn't been updated in the last 5 days.
   - A value of 1 means that, when a computer is rescanned, the specified data will only be updated if it hasn't been updated in the last day.
   - A value of 0 means that, when a computer is rescanned, the specified data will always be updated.
   - Scan items marked in red are disabled and will never be scanned. You can tick the Enable checkbox to enable them.
   - Scan items marked in gray cannot be disabled. Disabling these items would lead to unexpected scanning behavior.
3. The scanning targets and methods listed below respect item intervals. When Batch Scanning rescans a Windows computer for instance, it will (by default) only update OS information if that data hasn't been updated in the last 3 days.
   - Active Directory Domain
   - Workgroup
   - IP Range
   - Asset Group
   - Asset Type
   - Report
   - Windows Computer
   - Active Directory Computer Path
   - Batch Scanning
   - LsClient, a scanning method that has been discontinued in favor of the more powerful and more secure LsPush
4. The scanning targets and methods listed below DO NOT respect item intervals. When LsPush rescans a Windows computer for instance, it will always update all (enabled) scan items, regardless of what their schedules are. All computer data will be refreshed.
   - Active Directory User/Group Path, as this only scans users and groups, not computers
   - Windows Computer (Eventlog only)
   - Active Directory Path (Eventlog only)
   - LsPush
   - Rescan buttons found on the left in asset overviews, reports and on webpages of individual computers
5. When you browse to a Windows computer's Lansweeper webpage and open the Scan time tab, you can see when a specific scan item was last rescanned for that computer.