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    Slow upload

    Scheduled Pinned Locked Moved General pfSense Questions
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    • U Offline
      UnCoNoob
      last edited by

      Hey,

      I am getting slow upload speed with PFsense. I originally thought the onboard NIC could be the problem so I ordered a dual port Intel NIC to replace it but the issue is still there.

      I get 35Mbps without the PFsense box but with it connected I only get 13Mbps upload. The download is slightly slower from 80Mbps down to 70Mbps but could be other factors.

      I have changed the duplex setting to everything available in WAN and speeds seem to be the same no matter what I choose till I drop down to 100Mbps ones then speed drops to 7Mbps both down and up.

      I have ticked the Hardware Checksum Offloading but no change. I am not sure where to go from here. Could this be a modem issue? as I have 2 modems the one I get good speed is a locked modem from ISP and the one I use with PFsense is a identical modem it was locked but I have unlocked all the features and turned bridging on, So it should by all rights perform the same as I did have it connected just as a modem/router before the new one came and speeds where fine there before I bridged it.

      I am not sure where to turn to look now, any ideas?

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      • KOMK Online
        KOM
        last edited by

        Could be your MTU is too high.  Connect a Windows box directly to your modem and run ping -l 1500 -f <modem ip="" address="">and see if it's fragmented.  Lower the packet size and try again until it isn't fragmented.  Adjust MTU accordingly for pfSense WAN and then test pfSense speed again.</modem>

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        • U Offline
          UnCoNoob
          last edited by

          Ok thanks, What are some default numbers?

          I ran 1500 and 1480 and it was fragmented

          I ran 1400-1470 in increments of 10 and it was not fragmented.

          Is a higher number better?

          Should I go into increments of 1 till I find the sweet spot or is 1470 ok?

          Edit: I cannot see if this works yet as people are using the modem now, will report back when I have a chance.

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          • U Offline
            UnCoNoob
            last edited by

            ok that did not seem to matter I set the MTU to 1470 and no difference.

            I even ran ifconfig and the settings did change to 1470 in there.

            Does the hard drive affect the throughput on the network cards?

            I have another PC in the shed I might drag it out and test that. See if it produces the same results, I had another 3 NIC brand new as well in the shed will try them also but this board only has 1 PCI slot why I had to go with a seperate dual port intel card for it lol

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