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

    pfSense 2.6.0 High latency and packet loss.

    Scheduled Pinned Locked Moved General pfSense Questions
    38 Posts 6 Posters 6.4k Views
    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.
    • stephenw10S
      stephenw10 Netgate Administrator
      last edited by

      To be cleat the 45 and 102ms latency you saw was pinging from a laptop dircetly connected to the modem to the ISPs gateway IPs?
      If so that's still very high. 102ms is about what I see over a VPN from London to Austin!

      Steve

      G 1 Reply Last reply Reply Quote 1
      • G
        Gerard64 @stephenw10
        last edited by

        @stephenw10

        Yes laptop directly connected to the modem.
        45 and 102 milliseconds still high oke thanks, good to know.

        I am used to peaks of > 650 ms.
        Then 45 and 102 sound a lot less.

        Still big difference between pfSense and laptop directly onto the modem.

        Wen i ping from pfsense with source wan to the isp gateway while doing a speedtest on dslreports.com ping peaks to ~ 1000ms.

        I unchecked all the offloading in pfSense rebooted.
        Test again no change 🤔

        1 Reply Last reply Reply Quote 0
        • stephenw10S
          stephenw10 Netgate Administrator
          last edited by

          Are all of those whilst running a speedtest?

          You would expect to see higher ping times when the line is congested without any shaping to prevent that.

          Have you tried running a buffer-bloat test?

          G 2 Replies Last reply Reply Quote 0
          • G
            Gerard64 @stephenw10
            last edited by Gerard64

            @stephenw10
            yes all ping tests I do are with dslreports.com/speedtest running

            on dslreports bufferbloat is a D

            on https://www.waveform.com/tools/bufferbloat:

            6656e7fa-d8df-4772-961e-b34d010baa85-afbeelding.png

            3th bufferbloat test:
            e396018f-2b9e-4b44-a322-e5d3d3d1d850-afbeelding.png

            1 Reply Last reply Reply Quote 0
            • G
              Gerard64 @stephenw10
              last edited by Gerard64

              @stephenw10
              Wen i setup the codel limiters like it is explained in the docs.
              and then test it with a speedtest the wan stopts working all together i can't reach anything anymore on the Internet.

              5d5ab276-fc4d-4b77-9d55-e43d6f9b27da-afbeelding.png

              02e559e6-aa45-40d4-83f8-93916e593c30-afbeelding.png

              1 Reply Last reply Reply Quote 0
              • stephenw10S
                stephenw10 Netgate Administrator
                last edited by

                Do you see that same level of buffer-bloat with the laptop just connected to the modem?

                That's a pretty bad connection if so.

                G 1 Reply Last reply Reply Quote 0
                • G
                  Gerard64 @stephenw10
                  last edited by

                  @stephenw10
                  yes it is the same and yes very bad connection. That is what i try to figure out what and were is the problem exactly so i can think of the fix but before i can fix something i need to know exactly were the problem is.

                  First of all the internet connection is bad even with a system directly on the modem so that's what i know for sure.

                  Wen i connect my pfSense netwerk to the modem the ping peaks are way higher en bufferbloat also more bad.

                  Is there a relation between the two maybe?

                  Another weird thing is wen i use the codel limiter the wan blocks all traffic maybe there is a relation with the bad ping or maybe i configured the floating rule wrong of created the limiters wrong. I read them multiple times over but all seems like it is in the docs.

                  Cool_CoronaC 1 Reply Last reply Reply Quote 0
                  • Cool_CoronaC
                    Cool_Corona @Gerard64
                    last edited by

                    @gerard64 Check all cables and replace them.

                    Report back.

                    G 1 Reply Last reply Reply Quote 0
                    • G
                      Gerard64 @Cool_Corona
                      last edited by

                      @cool_corona
                      I did all that already
                      tested all cables temperarly replaced them

                      I connected a 20 meter cable from modem to the pfSense wan. No change.

                      d6e8f05a-4f9c-4dc5-b8f0-943b3cb67493-afbeelding.png

                      1 Reply Last reply Reply Quote 0
                      • stephenw10S
                        stephenw10 Netgate Administrator
                        last edited by

                        Do you have the captive portal enabled at all?

                        G 1 Reply Last reply Reply Quote 0
                        • G
                          Gerard64 @stephenw10
                          last edited by

                          @stephenw10
                          I use the captive portal in a wlan network yes but not in my normal lan.

                          1 Reply Last reply Reply Quote 0
                          • stephenw10S
                            stephenw10 Netgate Administrator
                            last edited by

                            Ah, then you will hit this: https://redmine.pfsense.org/issues/12954
                            It's fixed in 2.7 and 22.05. You could upgrade to either of those as a test.

                            With a link exhibiting buffer-bloat that badly you probably need shaping of some sort.
                            You could try using an ALTQ shaper instead.

                            Steve

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