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    LTE - Modem Works But Cannot Ping

    Cellular Modems
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    • tomT
      tom admin @derrick0799
      last edited by

      @derrick0799 Are you using the LTE V2 Add-on or Stand Alone?

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

        @vmassague Are you using the LTE V2 Add-on or Stand Alone? And you're using the Sierra 7607 modem correct?

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

          @tom, I am using the add-on

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

            @tom I'm using the Add-on also and I'm using the Sierra 7607

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

              @derrick0799 Can you disable the voxl-modem service from running with systemctl disable voxl-modem and reboot your voxl.

              Then run voxl-modem-start.sh manually so I can see the full output?

              derrick0799D 2 Replies Last reply Reply Quote 0
              • tomT
                tom admin @vmassague
                last edited by

                @vmassague Can you disable the voxl-modem service from running with systemctl disable voxl-modem and reboot your voxl.

                Then run voxl-modem-start.sh manually so I can see the full output?

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

                  @tom, sure. It will be later this evening before I am able to do so.

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

                    @derrick0799 @vmassague Another thing for both of you to check is to see if the APN is indeed set correctly, you can do this with the following command:

                    / # echo -ne "AT+CGDCONT?\r" | busybox microcom -t 1000 /dev/ttyUSB2
                    AT+CGDCONT?
                    +CGDCONT: 1,"IP","h2g2","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
                    

                    In this case, my APN is h2g2 for GoogleFi

                    derrick0799D 1 Reply Last reply Reply Quote 0
                    • 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)

                                  / #

                                  1 Reply Last reply Reply Quote 0
                                  • 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.

                                        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: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

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

                                            @derrick0799 Great to hear!

                                            1 Reply Last reply Reply Quote 0
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