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    Websites, apps and services randomly dropping out and needing multiple refreshes to reconnect

    Scheduled Pinned Locked Moved General pfSense Questions
    13 Posts 3 Posters 1.1k Views
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    • DerelictD
      Derelict LAYER 8 Netgate @Djkáťo
      last edited by

      @djkáťo What is the MTU setting on Interfaces > WAN?

      Chattanooga, Tennessee, USA
      A comprehensive network diagram is worth 10,000 words and 15 conference calls.
      DO NOT set a source address/port in a port forward or firewall rule unless you KNOW you need it!
      Do Not Chat For Help! NO_WAN_EGRESS(TM)

      D 1 Reply Last reply Reply Quote 0
      • D
        Djkáťo @Derelict
        last edited by

        @derelict I left it blank. c20fbeda-c957-457a-875b-f422c042934a-image.png

        DerelictD 1 Reply Last reply Reply Quote 0
        • DerelictD
          Derelict LAYER 8 Netgate @Djkáťo
          last edited by Derelict

          @djkáťo I would set that MTU to about 1450 and see if that helps. You should be able to go all the way up to about 1492 but I would start smaller.

          Chattanooga, Tennessee, USA
          A comprehensive network diagram is worth 10,000 words and 15 conference calls.
          DO NOT set a source address/port in a port forward or firewall rule unless you KNOW you need it!
          Do Not Chat For Help! NO_WAN_EGRESS(TM)

          D 1 Reply Last reply Reply Quote 0
          • D
            Djkáťo @Derelict
            last edited by

            @derelict I tried from 1450 down to 1300 and nothing improved sadly...

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            • D
              Djkáťo
              last edited by

              I've been trying different MTU sizes but they don't change anything sadly. I'm also getting signed out of many applications mid-using them, forgot to mention that symptom. @Derelict

              DerelictD 1 Reply Last reply Reply Quote 0
              • DerelictD
                Derelict LAYER 8 Netgate @Djkáťo
                last edited by

                @djkáťo That doesn't sound like anything a firewall would have anything to do with.

                Chattanooga, Tennessee, USA
                A comprehensive network diagram is worth 10,000 words and 15 conference calls.
                DO NOT set a source address/port in a port forward or firewall rule unless you KNOW you need it!
                Do Not Chat For Help! NO_WAN_EGRESS(TM)

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

                  Do you have a public IPv6 address? pfSense will use it if it can. Clients will usually try to use it if they think they can but if there's some problem with it it will timeout before falling back to v4. That can present symptoms like you describe.

                  Steve

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                  • D
                    Djkáťo @stephenw10
                    last edited by

                    @stephenw10 Thanks for the tip! Tried turning IPv6 completely off, but sadly that wasn't it either. Still have very slow loading times and get signed off every 2 hours or so. I had it previously on DHCPv6.

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                    • stephenw10S
                      stephenw10 Netgate Administrator
                      last edited by

                      Then I would try running packet capture whilst trying to connect to something that fails and see what's actually happening.

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                      • D
                        Djkáťo
                        last edited by

                        It seems to have been a DNS issue. The default settings were set to DNS Resolver after factory reset and first setup, which was probably the culprit. I turned it off and turned on the DNS forwarder instead, and now the internet works better than ever!

                        @stephenw10 @Derelict Thanks for your help~ I still don't exactly understand how that was an issue, but it works now. Have a nice day :)

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