More of a mild curiosity, and some basic research mostly yield utilization showing 0% or other low values.

I was downloading a game and noticed Task manager claimed I was at peak utilization at only 100Mbit, despite having 500Mbit connection (and download reaching very close to it).

Nic speed, config and type: bla

Switch config: bla

Firewall config (w/speed hints): bla

Example of just over 100Mbit load: bla

Example of near 500Mbit load: bla

  • What type of connection is this? How do you connect to it?
    – Daniel B
    Feb 17, 2016 at 11:15
  • Cable, Gbit via SMB switch(Netgear GS724T) to Firewall, then via cable modem.
    – Thor Erik
    Feb 17, 2016 at 11:22
  • Are you sure connection to the switch is actually running at 1000 Mbit/s? Please provide a screenshot of Task Manager’s network status view when the issue you describe is visible.
    – Daniel B
    Feb 17, 2016 at 11:43
  • A 500mbit connection? How did you get that? (Ethernet typically is 10/100/1000 mbit/sec, Not 500).
    – Hennes
    Feb 17, 2016 at 11:43
  • I think he’s referring to the Internet uplink.
    – Daniel B
    Feb 17, 2016 at 12:05

1 Answer 1


So "luck" should have it and my OS drive hit the trash which gave me reason to dig further on this, and it seems to be related to loop-back devices created with VMware and/or VirtualBox(both makes them), both which have a low link-speed associated with them, and by extension tricks TaskManager into this "100Mbit is max" idea.

  • 1
    Hah! I just disabled the VMware adapters and watched Task Manager get back to sane values live. Nicely done.
    – isanae
    Feb 20, 2017 at 0:54

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