Bandwidth used during scanning

Scanning non-Windows machines like Linux, Unix and Mac computers, VMware servers, printers, switches etc takes very little network traffic. One full first-time Windows computer scan takes 4MB if you are scanning without a scanning agent. Subsequent scans require less traffic, as data that is unlikely to change is not rescanned all the time.

If you scan your Windows computers without a scanning agent, you'll see more traffic being generated from your Lansweeper server to the client computers, as opposed to from the clients to the server. This is normal. Lansweeper pulls Windows computer data from WMI (Windows Management Instrumentation), a management framework built into Windows operating systems. It takes a lot more traffic to set up the various WMI connections to the client machine than it does to send the scanned data back.

By default, Lansweeper uses as much bandwidth as it can get. Best practices for reducing or spreading out bandwidth usage:

  • Reduce the number of scanning threads. The number of concurrent scans is determined by the Computer Threads and IP Threads values configured in the Service Options section of the following Lansweeper webpage: Configuration\Server Options
    Computer/IP thread changes won't take effect until you restart the Lansweeper Server service on your Lansweeper server.
  • Scan your Windows, Linux and Mac computers with LsAgent instead. LsAgent scans locally, doesn't need to set up client connections and therefore only generates 40KB of traffic for one full Windows computer scan. Windows computers can also be scanned locally with LsPush instead.
  • Set up a Lansweeper installation with multiple scanning servers. A multi scanning server setup is supported by some Lansweeper licenses and allows for more efficient load balancing, as the scanning load and network traffic are divided among multiple machines. If you would like to add scanning servers to your current license, please contact the Lansweeper sales team at our sales form.
  • Disable scanning of any Windows data you're not interested in under Scanning\Scanned Item Interval or increase item intervals, so data is scanned less frequently.
  • Disable scanning of any Windows computer license keys, files and registry keys you're not interested in under Software\License Key Settings and Scanning\File & Registry Scanning
  • Use QoS on your WAN connections to throttle network traffic. This is recommended for Lansweeper as well as other applications.

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