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    LTE - Modem Works But Cannot Ping

    Cellular Modems
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    • derrick0799D
      derrick0799 @tom
      last edited by

      @tom I ran 'systemctl disable voxl-modem' and reboot voxl then...
      yocto:~$ voxl-modem-start.sh

      VOXL detected...

      Initializing v2 modem...

      Waiting for ttyUSB2...
      ttyUSB2

      Initalizing cellular connection...
      Configuring GPIO to pull modem out of reset
      Waiting for the diag serial port(/dev/ttyUSB0) to activate
      checking for serial port: /dev/ttyUSB0
      /dev/ttyUSB0 is available
      Verifying existence of QMI port(/dev/cdc-wdm0)
      checking for serial port: /dev/cdc-wdm0
      /dev/cdc-wdm0 is available
      Unstick QMI countdown: 10
      Unstick QMI countdown: 9
      Unstick QMI countdown: 8
      Unstick QMI countdown: 7
      Unstick QMI countdown: 6
      "12253379280"
      Checking for system registration
      Attempt: 1
      {
      "registration": "registered",
      "plmn_mcc": 311,
      "plmn_mnc": 480,
      "plmn_description": "Verizon ",
      "roaming": false
      }

      response: [{
      "registration": "registered",
      "plmn_mcc": 311,
      "plmn_mnc": 480,
      "plmn_description": "Verizon ",
      "roaming": false
      }
      ]
      Successfully registered with the network
      Starting network
      "No effect"
      Checking connection status
      Connection is up
      Using the DHCP client to get an IP address
      udhcpc (v1.23.2) started
      Sending discover...
      Sending select for 100.68.239.240...
      Lease of 100.68.239.240 obtained, lease time 7200

      1 Reply Last reply Reply Quote 0
      • derrick0799D
        derrick0799 @tom
        last edited by

        @tom said in LTE - Modem Works But Cannot Ping:

        echo -ne "AT+CGDCONT?\r" | busybox microcom -t 1000 /dev/ttyUSB2

        yocto:~$ echo -ne "AT+CGDCONT?\r" | busybox microcom -t 1000 /dev/ttyUSB2
        AT+CGDCONT?
        +CGDCONT: 1,"IP","vzwinternet","0.0.0.0",0,0,0,0
        +CGDCONT: 2,"IPV4V6","ims","0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0",0,0,0,0
        +CGDCONT: 3,"IPV4V6","sos","0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0",0,0,0,1

        OK

        tomT 1 Reply Last reply Reply Quote 0
        • tomT
          tom admin
          last edited by

          @derrick0799 Do you have WiFi connected? If so, try disabling it with ifconfig wlan0 down and seeing if you can then ping.

          Also, can I see the output of route -n?

          Same for you @vmassague something to try.

          derrick0799D 1 Reply Last reply Reply Quote 0
          • tomT
            tom admin @derrick0799
            last edited by

            @derrick0799 Looks like APN is setting correctly so that's good

            1 Reply Last reply Reply Quote 0
            • derrick0799D
              derrick0799 @tom
              last edited by

              @tom after disabling wlan0,
              / # ping 8.8.8.8
              connect: Network is unreachable

              / # route -n
              Kernel IP routing table
              Destination Gateway Genmask Flags Metric Ref Use Iface
              172.17.0.0 0.0.0.0 255.255.0.0 U 0 0 0 docker0
              / #

              1 Reply Last reply Reply Quote 0
              • tomT
                tom admin
                last edited by

                @derrick0799 What does ifconfig show?

                derrick0799D 1 Reply Last reply Reply Quote 0
                • derrick0799D
                  derrick0799 @tom
                  last edited by

                  @tom
                  / # ifconfig
                  docker0 Link encap:Ethernet HWaddr 02:42:77:DF:4E:80
                  inet addr:172.17.0.1 Bcast:0.0.0.0 Mask:255.255.0.0
                  inet6 addr: fe80::42:77ff:fedf:4e80/64 Scope:Link
                  UP BROADCAST MULTICAST MTU:1500 Metric:1
                  RX packets:0 errors:0 dropped:0 overruns:0 frame:0
                  TX packets:2 errors:0 dropped:0 overruns:0 carrier:0
                  collisions:0 txqueuelen:0
                  RX bytes:0 (0.0 B) TX bytes:140 (140.0 B)

                  lo Link encap:Local Loopback
                  inet addr:127.0.0.1 Mask:255.0.0.0
                  inet6 addr: ::1/128 Scope:Host
                  UP LOOPBACK RUNNING MTU:65536 Metric:1
                  RX packets:609376 errors:0 dropped:0 overruns:0 frame:0
                  TX packets:609376 errors:0 dropped:0 overruns:0 carrier:0
                  collisions:0 txqueuelen:0
                  RX bytes:65142775 (62.1 MiB) TX bytes:65142775 (62.1 MiB)

                  / #

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                  • tomT
                    tom admin
                    last edited by

                    @derrick0799 Is that the output after running voxl-modem-start.sh?

                    1 Reply Last reply Reply Quote 0
                    • tomT
                      tom admin
                      last edited by

                      At that point, you should be seeing something similar to:

                      wwan0     Link encap:UNSPEC  HWaddr 00-00-00-00-00-00-00-00-00-00-00-00-00-00-00-00  
          inet addr:30.60.23.115  P-t-P:30.60.23.115  Mask:255.255.255.248
          UP POINTOPOINT RUNNING NOARP MULTICAST  MTU:1500  Metric:1
          RX packets:33 errors:0 dropped:0 overruns:0 frame:0
          TX packets:55 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000 
          RX bytes:3214 (3.1 KiB)  TX bytes:4672 (4.5 KiB)
                      derrick0799D 2 Replies Last reply Reply Quote 0
                      • derrick0799D
                        derrick0799 @tom
                        last edited by

                        @tom I think my problem was that the wifi was connected when I ran the voxl-modem-start.sh
                        Now that I am connect with adb everything started working when I re-ran voxl-modem-start.sh. It is pinging as it should.

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                        • derrick0799D
                          derrick0799 @tom
                          last edited by

                          @tom
                          / # ifconfig
                          docker0 Link encap:Ethernet HWaddr 02:42:77:DF:4E:80
                          inet addr:172.17.0.1 Bcast:0.0.0.0 Mask:255.255.0.0
                          inet6 addr: fe80::42:77ff:fedf:4e80/64 Scope:Link
                          UP BROADCAST MULTICAST MTU:1500 Metric:1
                          RX packets:0 errors:0 dropped:0 overruns:0 frame:0
                          TX packets:2 errors:0 dropped:0 overruns:0 carrier:0
                          collisions:0 txqueuelen:0
                          RX bytes:0 (0.0 B) TX bytes:140 (140.0 B)

                          lo Link encap:Local Loopback
                          inet addr:127.0.0.1 Mask:255.0.0.0
                          inet6 addr: ::1/128 Scope:Host
                          UP LOOPBACK RUNNING MTU:65536 Metric:1
                          RX packets:1472332 errors:0 dropped:0 overruns:0 frame:0
                          TX packets:1472332 errors:0 dropped:0 overruns:0 carrier:0
                          collisions:0 txqueuelen:0
                          RX bytes:155328799 (148.1 MiB) TX bytes:155328799 (148.1 MiB)

                          wwan0 Link encap:UNSPEC HWaddr 00-00-00-00-00-00-00-00-00-00-00-00-00-00-00-00
                          inet addr:100.76.95.21 P-t-P:100.76.95.21 Mask:255.255.255.252
                          UP POINTOPOINT RUNNING NOARP MULTICAST MTU:1500 Metric:1
                          RX packets:2 errors:0 dropped:0 overruns:0 frame:0
                          TX packets:2713 errors:0 dropped:0 overruns:0 carrier:0
                          collisions:0 txqueuelen:1000
                          RX bytes:612 (612.0 B) TX bytes:1304344 (1.2 MiB)

                          / # ping 8.8.8.8
                          PING 8.8.8.8 (8.8.8.8) 56(84) bytes of data.
                          64 bytes from 8.8.8.8: icmp_req=1 ttl=113 time=34.3 ms
                          64 bytes from 8.8.8.8: icmp_req=2 ttl=113 time=35.1 ms
                          64 bytes from 8.8.8.8: icmp_req=3 ttl=113 time=34.0 ms
                          64 bytes from 8.8.8.8: icmp_req=4 ttl=113 time=27.1 ms
                          64 bytes from 8.8.8.8: icmp_req=5 ttl=113 time=31.1 ms
                          64 bytes from 8.8.8.8: icmp_req=6 ttl=113 time=36.5 ms
                          64 bytes from 8.8.8.8: icmp_req=7 ttl=113 time=24.0 ms

                          Thanks @Tom

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                          • tomT
                            tom admin
                            last edited by

                            @derrick0799 Great to hear!

                            1 Reply Last reply Reply Quote 0
                            • vmassagueV
                              vmassague
                              last edited by

                              Problem solved for me too! I think it was also the wlan0 being up. Thanks a lot for the support @tom

                              tomT 1 Reply Last reply Reply Quote 0
                              • tomT
                                tom admin @vmassague
                                last edited by

                                @vmassague Awesome!

                                1 Reply Last reply Reply Quote 0
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