Netgate Discussion Forum
    • Categories
    • Recent
    • Tags
    • Popular
    • Users
    • Search
    • Register
    • Login

    When downloading large files pfSense stops responding with high CPU usage

    Virtualization
    2
    3
    682
    Loading More Posts
    • Oldest to Newest
    • Newest to Oldest
    • Most Votes
    Reply
    • Reply as topic
    Log in to reply
    This topic has been deleted. Only users with topic management privileges can see it.
    • G
      GaZaai
      last edited by

      Hi,

      When I download large files, for instance a steam game. Sometimes my pfSense stops responding and has high CPU usage 40-50% within Hyper-V.

      To get it back to normal I have to go into control panel and disable/enable a network adapter.
      Then it comes straight back.

      What settings in pfSense can I enable to try and log this issue to find what the problem might be.

      Thanks

      Dobby_D 1 Reply Last reply Reply Quote 0
      • Dobby_D
        Dobby_ @GaZaai
        last edited by

        @gazaai

        It seems for me that there is something running full!?
        Or are there other packets installed such squid & clamav?

        #~. @Dobby

        Turris Omnia - 4 Ports - 2 GB RAM / TurrisOS 7 Release (Btrfs)
        PC Engines APU4D4 - 4 Ports - 4 GB RAM / pfSense CE 2.7.2 Release (ZFS)
        PC Engines APU6B4 - 4 Ports - 4 GB RAM / pfSense+ (Plus) 24.03_1 Release (ZFS)

        G 1 Reply Last reply Reply Quote 0
        • G
          GaZaai @Dobby_
          last edited by

          @dobby_ I think I might have narrowed it down to an issue with the Intel I226-V ethernet controllers my mini PC has. Ended up disabling the offloading options within the driver settings-

          • IPv4 Checksum Offload
          • Large Send Offload V2 (IPv4)
          • Large Send Offload V2 (IPv6)
          • TCP Checksum Offload (IPv4)
          • TCP Checksum Offload (IPv6)
          • UDP Checksum Offload (IPv4)
          • UDP Checksum Offload (IPv6)

          The issue hasn't came back yet, so hopefully that might be it fixed.

          found the potential fix here

          Thanks,
          Gary

          1 Reply Last reply Reply Quote 0
          • First post
            Last post
          Copyright 2025 Rubicon Communications LLC (Netgate). All rights reserved.