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    serial port not recognized in Win11

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    • O
      oldschoolrouterjockey
      last edited by oldschoolrouterjockey

      So again, except this time on a newer model SG1100, tried an upgrade from 22.01 to 23.01 and again its failed misreably. System down hard, and this time cannnot even access the com port to see what is going on. I have a USB-Serial Controller with the yellow triangle with exclamation point in it.

      My windows can open the serial port on this older SG1100 just fine, but not this newer unit.

      I tried the universal windows driver from https://www.silabs.com/developers/usb-to-uart-bridge-vcp-drivers?tab=downloads

      what should I try next?

      V S 2 Replies Last reply Reply Quote 0
      • V
        viragomann @oldschoolrouterjockey
        last edited by

        @oldschoolrouterjockey
        Did you try to change the baud rate in the Windows console?
        pfSense uses 115200 by default as far as I know.

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        • stephenw10S
          stephenw10 Netgate Administrator
          last edited by

          The 1100 doesn't use a Silabs usb-com device. Try the Prolific driver:
          https://docs.netgate.com/pfsense/en/latest/solutions/sg-1100/connect-to-console.html#install-the-driver

          O 1 Reply Last reply Reply Quote 1
          • O
            oldschoolrouterjockey @stephenw10
            last edited by

            OK That prolific driver solved this, leaving me with two questions, lol:

            1. why was I able to get a serial connection on my other 1100 today but not this one that today started giving me problems?
            2. how was i directed, earlier today, to a silabs driver?

            I hate it when I confuse myself even more....

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            • S
              SteveITS Galactic Empire @oldschoolrouterjockey
              last edited by

              @oldschoolrouterjockey said in serial port not recognized in Win11:

              I have a USB-Serial Controller with the yellow triangle with exclamation point

              If it's showing that way under Universal Serial Bus Controllers that's not the right section, either...it shows under Ports:
              https://docs.netgate.com/pfsense/en/latest/solutions/sg-1100/connect-to-console.html#locate-the-console-port-device

              Pre-2.7.2/23.09: Only install packages for your version, or risk breaking it. Select your branch in System/Update/Update Settings.
              When upgrading, allow 10-15 minutes to restart, or more depending on packages and device speed.
              Upvote 👍 helpful posts!

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              • stephenw10S
                stephenw10 Netgate Administrator
                last edited by

                Probably the slightly older chip in he older 1100 was supported by the included driver in Windows 11. A newer chip revision is not so requires a driver update.

                I'm not sure why you were directed to the Silabs driver. If that was by us that was a mistake, I apologise.

                Steve

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