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    Bug: data mobile interface looses ip

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    • pparentP Offline
      pparent
      last edited by

      Actually I have had the bug once again, and this time the interface holding the IP "ccmni0" was down, but forcing it up did not restore the connexion, I could ping the gateway but nothing more.

      pparentP 1 Reply Last reply Reply Quote 0
      • pparentP Offline
        pparent @pparent
        last edited by

        I'm wondering about something, as this problem is an IP loss problem, I think it should be noted that by defualt NetworkManager uses it's internal dhcp handler. But it is also possible to configure it to use dhclient. And I wonder if the later would not be more reliable.

        So I think I will test to change the configuration of my NetworkManager to use dhclient, and see if it has any impact on this bug.

        1 Reply Last reply Reply Quote 0
        • D Offline
          domubpkm
          last edited by

          Any news about this annoying issue ?

          pparentP 1 Reply Last reply Reply Quote 0
          • pparentP Offline
            pparent @domubpkm
            last edited by

            @domubpkm

            I will soon try to write a workaround script, but when I have time.

            D 1 Reply Last reply Reply Quote 1
            • D Offline
              domubpkm @pparent
              last edited by

              @pparent THANKS. I still linked this post to NotKit from the Volla team. This is still a big problem for the Volla 22 which will have to be fixed. In addition, network loss is almost systematic each time the volla 22 is restarted.

              pparentP 1 Reply Last reply Reply Quote 0
              • pparentP Offline
                pparent @domubpkm
                last edited by

                @domubpkm

                I've written a workaround script that I'm currently testing, that detects an IP loss on the interface and automatically reinitialize the modem when it happens. For now it seems to work quite well, and even seems to have a positive impact on VoLTE connexion. I will test it for a few days, and if everything goes well, I will publish it here.

                D G 2 Replies Last reply Reply Quote 3
                • D Offline
                  domubpkm @pparent
                  last edited by

                  @pparent Great.
                  A good test is to see if the connection is still lost after reboot or complete shutdown and startup.

                  pparentP 1 Reply Last reply Reply Quote 0
                  • pparentP Offline
                    pparent @domubpkm
                    last edited by

                    @domubpkm said:

                    A good test is to see if the connection is still lost after reboot or complete shutdown and startup.

                    This is not really the purpose of the script for now. The purpose of the script is that, when you keep the phone up, and you travel, Internet remain accessible at any moment, without needing to manualy go in the settings to restart the connection.

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                    • D Offline
                      domubpkm @pparent
                      last edited by

                      @pparent ok. Thanks for the clarification. I just said that because it is a behavior i noticed very frequently.

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                      • G Offline
                        gpatel-fr @pparent
                        last edited by

                        @pparent

                        For the record I never commented on this problem because I had not yet seen it but I recently observed something that looked like it: I did pass in an area without cellular support and when going back to civilization, the cellular data did come back but no routing it seems, as you describe.
                        I'd need a Faraday cage to confirm.

                        1 Reply Last reply Reply Quote 0

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