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  3. Loss of wlan0 and potentially wwan0

Loss of wlan0 and potentially wwan0

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  • groupoG Offline
    groupoG Offline
    groupo
    Regular
    wrote on last edited by
    #2

    An update after some additional testing:

    I turned on one of the drones without the SIM this AM to find the WIFI adapter was coming online and working, just like the pre-SIM behavior. I tried taking the SIM out of the other drone, but that WIFI adapter still will not turn on. I poweroff -f the drone with working WIFI, put the sim in, and reboot. the WIFI adapter no longer turns on, and wlan0/wwan0 are both non-existent with the same behavior I discussed last week.

    further testing, I ran configure-modem on the SIMless drone, which had no impact on the wifi. It seems that putting the SIM card in is what is causing this behavior

    tomT 1 Reply Last reply
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    • groupoG groupo

      An update after some additional testing:

      I turned on one of the drones without the SIM this AM to find the WIFI adapter was coming online and working, just like the pre-SIM behavior. I tried taking the SIM out of the other drone, but that WIFI adapter still will not turn on. I poweroff -f the drone with working WIFI, put the sim in, and reboot. the WIFI adapter no longer turns on, and wlan0/wwan0 are both non-existent with the same behavior I discussed last week.

      further testing, I ran configure-modem on the SIMless drone, which had no impact on the wifi. It seems that putting the SIM card in is what is causing this behavior

      tomT Offline
      tomT Offline
      tom
      admin
      wrote on last edited by
      #3

      @groupo Can't say I've seen anything like that before. Can you confirm that the M0090 add-on board is fully seated onto the VOXL 2 with both connectors fully inserted

      groupoG 1 Reply Last reply
      0
      • tomT tom

        @groupo Can't say I've seen anything like that before. Can you confirm that the M0090 add-on board is fully seated onto the VOXL 2 with both connectors fully inserted

        groupoG Offline
        groupoG Offline
        groupo
        Regular
        wrote on last edited by
        #4

        @tom This may be my issue, I still had the standoffs unscrewed so I could take the SIM card out easier. Which two connectors are you referring to? Will rescrew the standoffs in the meantime

        tomT groupoG 2 Replies Last reply
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        • groupoG groupo

          @tom This may be my issue, I still had the standoffs unscrewed so I could take the SIM card out easier. Which two connectors are you referring to? Will rescrew the standoffs in the meantime

          tomT Offline
          tomT Offline
          tom
          admin
          wrote on last edited by
          #5

          @groupo The two board to board connectors, J2, and J4 as seen here: https://docs.modalai.com/5G-Modem-datasheet/#j2-voxl-2-board-to-board

          I would also ensure that the modem card is fully seated in the M0090 add-on as well

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          • groupoG groupo

            @tom This may be my issue, I still had the standoffs unscrewed so I could take the SIM card out easier. Which two connectors are you referring to? Will rescrew the standoffs in the meantime

            groupoG Offline
            groupoG Offline
            groupo
            Regular
            wrote on last edited by
            #6

            I tightened the standoffs back down and the wifi adapter came back on! Also, wwan0 is up for the modem now too. thanks @tom

            tomT 1 Reply Last reply
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            • groupoG groupo

              I tightened the standoffs back down and the wifi adapter came back on! Also, wwan0 is up for the modem now too. thanks @tom

              tomT Offline
              tomT Offline
              tom
              admin
              wrote on last edited by
              #7

              @groupo great to hear!

              groupoG 1 Reply Last reply
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              • tomT tom

                @groupo great to hear!

                groupoG Offline
                groupoG Offline
                groupo
                Regular
                wrote on last edited by groupo
                #8

                @tom I have a lot of modem-related trouble shooting I would like to do before coming here for actual help, but while I am going thru that, I'd like to broach our use case and see if you have any initial reservations about it. We are running a private LTE network. I know the APN and am calling voxl-config-modem accordingly, but am running into some qmi errors. While I am digging thru some of voxl-modem and voxl-modem-start to see if I can get a handle of what is going on, do you know if this use case is supported?

                tomT 2 Replies Last reply
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                • groupoG groupo

                  @tom I have a lot of modem-related trouble shooting I would like to do before coming here for actual help, but while I am going thru that, I'd like to broach our use case and see if you have any initial reservations about it. We are running a private LTE network. I know the APN and am calling voxl-config-modem accordingly, but am running into some qmi errors. While I am digging thru some of voxl-modem and voxl-modem-start to see if I can get a handle of what is going on, do you know if this use case is supported?

                  tomT Offline
                  tomT Offline
                  tom
                  admin
                  wrote on last edited by
                  #9

                  @groupo The private network would have to be compatible with the flavor of modem hardware you're using but that is something other customers have done in the past so I don't see any issues with that plan

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                  • groupoG groupo

                    @tom I have a lot of modem-related trouble shooting I would like to do before coming here for actual help, but while I am going thru that, I'd like to broach our use case and see if you have any initial reservations about it. We are running a private LTE network. I know the APN and am calling voxl-config-modem accordingly, but am running into some qmi errors. While I am digging thru some of voxl-modem and voxl-modem-start to see if I can get a handle of what is going on, do you know if this use case is supported?

                    tomT Offline
                    tomT Offline
                    tom
                    admin
                    wrote on last edited by
                    #10

                    @groupo Are you using a Quectel or Sierra modem?

                    groupoG 1 Reply Last reply
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                    • tomT tom

                      @groupo Are you using a Quectel or Sierra modem?

                      groupoG Offline
                      groupoG Offline
                      groupo
                      Regular
                      wrote on last edited by
                      #11

                      @tom we are using the sierra, I noted in another post that it is the 9291 and I see only an option for the 9191, but one of the other devs (Alex?) had said that the 9191 option would be fine

                      groupoG tomT 2 Replies Last reply
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                      • groupoG groupo

                        @tom we are using the sierra, I noted in another post that it is the 9291 and I see only an option for the 9191, but one of the other devs (Alex?) had said that the 9191 option would be fine

                        groupoG Offline
                        groupoG Offline
                        groupo
                        Regular
                        wrote on last edited by
                        #12

                        @tom I also will note, modem-flavor-wise, it is B3 LTE network (though, we are in America) which is supported in the datasheets

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                        • groupoG groupo

                          @tom we are using the sierra, I noted in another post that it is the 9291 and I see only an option for the 9191, but one of the other devs (Alex?) had said that the 9191 option would be fine

                          tomT Offline
                          tomT Offline
                          tom
                          admin
                          wrote on last edited by
                          #13

                          @groupo Yeah that option in voxl-configure-modem is correct, I should update it in the future to make it more clear.

                          This is what gets run on boot with that option: https://gitlab.com/voxl-public/voxl-sdk/utilities/voxl-modem/-/blob/master/scripts/voxl-modem-start?ref_type=heads#L122

                          For that modem, voxl-modem just acts as a wrapper for qmicli: https://gitlab.com/voxl-public/voxl-sdk/utilities/voxl-modem/-/blob/master/scripts/voxl-modem-start?ref_type=heads#L147

                          and udhcpc: https://gitlab.com/voxl-public/voxl-sdk/utilities/voxl-modem/-/blob/master/scripts/voxl-modem-start?ref_type=heads#L160

                          Feel free to modify the script as needed to fit your application

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