Data connection not following pdp-context setup

1

I am using two WP8548 units. Both units have been upgraded to the “Generic_upgrade_12”. Both units are set-up as APN: internet, AUTH: None, PDP-Context: IPV4. Usually when using “cm data connect” or “go_online()”(from Modem_demo Application), it connects without a problem.

Every so often, it “goes into a mode”, where any of 2 things go wrong with the connecting-action.

  1. It fails to register on the SIM card's home-network, and just tries to connect on a forbidden network, running "cm radio off ; sleep 10 ; cm radio on", doesn't fix it, it only tries to connect to another forbidden network. A reboot also does not fix the situation, but after a full power cycle, it registers on the home network again.
  2. It connects to the network, but in only IPV6 mode.
    • If I then run "echo 1 > /proc/sys/net/ipv6/conf/rmnet0/ipv6/disable_ipv6",
      • the entry disappears out of ifconfig, but "cm data info" shows it is still connected
      • or the connection shows,but has no ip-addr assinged.
    • If I disable_ipv6 before connecting, it takes a long time to show in "ifconfig" although "cm data info" already shows connected. When is appears in "ifconfig", it fist shows no IP, and then after a while, it gives an IPV6 address.
The only way I have been able to recover it, was a combination of repeatedly modifying the data configuration and power cycling the unit.

I only have this problem with the 1 unit. I have swapped the sim-cards between the units, and the problem stays with the unit.
So I would like to know:

  1. Is there a way to force attempting to register on the home network?
  2. Is there a method other than “cm data pdp IPV4” and syscrl’s disable_ipv6 to force the rmnet0 connection to use IPV4?
  3. Can I enable debugging of the connecting process (& how)?
2

Can you do
logread -f
on the unit?

Regards,
Ashish

3

I only have access to the units again tomorrow, so I will dump the logread then. Is “logread -f” and “cm” the only connection debugging tools?

I am using the APN as “internet” , it is set like that in both units, and authentication to none. The 1 unit always connects correctly, the other unit connects correctly for a long time, until “something happens”.
The units are used for developing two different apps, both that posts periodic updates to the cloud. Every time I download and restart the app, the data-connection closes (during app_exit() it appears) and then reconnects when it needs to post n packet. It works for long times, then suddenly after an app download and restart the posting fails. Using “cm …” to inspect the setup then, shows all the same settings as what has been working earlier.

So I dont feel APN could be a problem, cause either

  • it connects, but only on IPV6, even though pdp is still set to IPV4
  • or it only tries to register on forbidden networks, as if it lost its “home network” setting.

Thanks

4

When I got to the unit this morning, it was in that state of only connecting in IPV6.

I Got the following before disconnecting and after reconnecting:
root@swi-mdm9x15:~# ifconfig
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:0 errors:0 dropped:0 overruns:0 frame:0
TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:0 (0.0 B) TX bytes:0 (0.0 B)

rmnet0 Link encap:UNSPEC HWaddr 00-00-00-00-00-00-00-00-00-00-00-00-00-00-00-00
inet6 addr: fe80::b89f:8297:1ffc:29bc/64 Scope:Link
UP RUNNING MTU:1430 Metric:1
RX packets:0 errors:0 dropped:0 overruns:0 frame:0
TX packets:76 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:0 (0.0 B) TX bytes:21312 (20.8 KiB)

usb0 Link encap:Ethernet HWaddr 32:48:DB:10:04:BC
inet addr:192.168.2.2 Bcast:192.168.2.255 Mask:255.255.255.0
inet6 addr: fe80::3048:dbff:fe10:4bc/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:3635 errors:0 dropped:4 overruns:0 frame:0
TX packets:4502 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:387845 (378.7 KiB) TX bytes:2175902 (2.0 MiB)

root@swi-mdm9x15:~# cm data info
Index: 1
APN: internet
PDP Type: IPV4
Connected: yes
Auth type: PAP
User name: internet
Password: internet

Disconnecting and reconnecting while keeping logread -f open gave the following:

Oct 18 07:24:42 swi-mdm9x15 user.info Legato: INFO | WP85XXApp[1012]/WP85XXComp_WP85XX T=main | mdmTools.c bCheckMyApn() 285 | Setting APN to internet
Oct 18 07:24:42 swi-mdm9x15 user.err Legato: =ERR= | modemDaemon[481]/swiQmi T=main | swiQmi.c swiQmi_CheckResponse() 768 | Sending QMI_WDS_GET_RUNTIME_SETTINGS_REQ_V01 failed: rc=0 (), resp.result=1.[0x01], resp.error=15.[0x0f]
Oct 18 07:24:42 swi-mdm9x15 user.info Legato: INFO | WP85XXApp[1012]/WP85XXComp_WP85XX T=main | mdmTools.c bCheckMyApn() 293 | Setting Auth to PAP, with Usr: internet ,Pass: internet
Oct 18 07:24:42 swi-mdm9x15 user.err Legato: =ERR= | modemDaemon[481]/swiQmi T=main | swiQmi.c swiQmi_CheckResponse() 768 | Sending QMI_WDS_GET_RUNTIME_SETTINGS_REQ_V01 failed: rc=0 (), resp.result=1.[0x01], resp.error=15.[0x0f]
Oct 18 07:24:43 swi-mdm9x15 user.err Legato: =ERR= | modemDaemon[481]/swiQmi T=main | swiQmi.c swiQmi_CheckResponse() 768 | Sending QMI_WDS_GET_RUNTIME_SETTINGS_REQ_V01 failed: rc=0 (), resp.result=1.[0x01], resp.error=15.[0x0f]
Oct 18 07:24:43 swi-mdm9x15 user.info Legato: INFO | modemDemo[486]/demoComponent_modemFams T=main | demo.c ConnectionStateHandler() 1015 | Connection State Event: ‘’ connected
Oct 18 07:24:43 swi-mdm9x15 user.info Legato: INFO | modemDemo[486]/demoComponent_modemFams T=main | demo.c ConnectionStateHandler() 1015 | Connection State Event: ‘’ not connected
Oct 18 07:24:46 swi-mdm9x15 user.err Legato: =ERR= | modemDaemon[481]/swiQmi T=main | swiQmi.c swiQmi_CheckResponse() 768 | Sending QMI_WDS_GET_RUNTIME_SETTINGS_REQ_V01 failed: rc=0 (), resp.result=1.[0x01], resp.error=15.[0x0f]
Oct 18 07:24:46 swi-mdm9x15 user.info Legato: INFO | WP85XXApp[1012]/WP85XXComp_WP85XX T=main | WP85XXComp.c main_loop() 333 | WP85XX: Data connection failed
Oct 18 07:24:54 swi-mdm9x15 user.err Legato: =ERR= | modemDaemon[481]/swiQmi T=main | swiQmi.c swiQmi_CheckResponse() 768 | Sending QMI_WDS_GET_RUNTIME_SETTINGS_REQ_V01 failed: rc=0 (), resp.result=1.[0x01], resp.error=15.[0x0f]
Oct 18 07:24:54 swi-mdm9x15 user.info Legato: INFO | WP85XXApp[1012]/WP85XXComp_WP85XX T=main | WP85XXComp.c main_loop() 333 | WP85XX: Data connection failed
Oct 18 07:25:02 swi-mdm9x15 user.err Legato: =ERR= | modemDaemon[481]/swiQmi T=main | swiQmi.c swiQmi_CheckResponse() 768 | Sending QMI_WDS_GET_RUNTIME_SETTINGS_REQ_V01 failed: rc=0 (), resp.result=1.[0x01], resp.error=15.[0x0f]
Oct 18 07:25:02 swi-mdm9x15 user.info Legato: INFO | WP85XXApp[1012]/WP85XXComp_WP85XX T=main | WP85XXComp.c main_loop() 333 | WP85XX: Data connection failed
Oct 18 07:25:10 swi-mdm9x15 user.err Legato: =ERR= | modemDaemon[481]/swiQmi T=main | swiQmi.c swiQmi_CheckResponse() 768 | Sending QMI_WDS_GET_RUNTIME_SETTINGS_REQ_V01 failed: rc=0 (), resp.result=1.[0x01], resp.error=15.[0x0f]
Oct 18 07:25:10 swi-mdm9x15 user.info Legato: INFO | WP85XXApp[1012]/WP85XXComp_WP85XX T=main | WP85XXComp.c main_loop() 333 | WP85XX: Data connection failed
Oct 18 07:25:19 swi-mdm9x15 user.warn Legato: -WRN- | dcsDaemon[477]/dataConnectionService T=Data Thread | dcsServer.c TryStartDataSession() 998 | Could not save the default gateway
Oct 18 07:25:19 swi-mdm9x15 user.err Legato: =ERR= | dcsDaemon[477] | route: SIOCADDRT: Network is unreachable
Oct 18 07:25:19 swi-mdm9x15 user.info Legato: INFO | dcsDaemon[477]/dataConnectionService T=Data Thread | dcsServer.c AddNameserversToResolvConf() 653 | Set DNS ‘196.207.32.83’ '196.207.32.69’
Oct 18 07:25:24 swi-mdm9x15 user.info Legato: INFO | modemDemo[486]/demoComponent_modemFams T=main | demo.c ConnectionStateHandler() 1015 | Connection State Event: ‘rmnet0’ connected
Oct 18 07:25:24 swi-mdm9x15 user.info Legato: INFO | modemDemo[486]/demoComponent_modemFams T=main | demo.c ConnectionStateHandler() 1015 | Connection State Event: ‘rmnet0’ connected
Oct 18 07:25:24 swi-mdm9x15 user.info Legato: INFO | modemDemo[486]/demoComponent_modemFams T=main | demo.c ConnectionStateHandler() 1015 | Connection State Event: ‘rmnet0’ connected
Oct 18 07:25:24 swi-mdm9x15 user.info Legato: INFO | modemDemo[486]/demoComponent_modemFams T=main | demo.c ConnectionStateHandler() 1015 | Connection State Event: ‘rmnet0’ connected
Oct 18 07:25:24 swi-mdm9x15 user.info Legato: INFO | modemDemo[486]/demoComponent_modemFams T=main | demo.c ConnectionStateHandler() 1015 | Connection State Event: ‘rmnet0’ connected
Oct 18 07:25:26 swi-mdm9x15 user.info Legato: INFO | WP85XXApp[1012]/WP85XXComp_WP85XX T=main | mdmTools.c bGetConnInfo() 597 | 100.90.89.87
Oct 18 07:25:26 swi-mdm9x15 user.info Legato: INFO | WP85XXApp[1012]/WP85XXComp_WP85XX T=main | mdmTools.c bGetConnInfo() 601 | 100.90.89.88
Oct 18 07:25:26 swi-mdm9x15 user.info Legato: INFO | WP85XXApp[1012]/WP85XXComp_WP85XX T=main | WP85XXComp.c main_loop() 405 | IP : 100.90.89.87
Oct 18 07:25:26 swi-mdm9x15 user.info Legato: INFO | WP85XXApp[1012]/WP85XXComp_WP85XX T=main | WP85XXComp.c main_loop() 406 | GW : 100.90.89.88
Oct 18 07:25:29 swi-mdm9x15 authpriv.notice dropbear[1236]: Auth succeeded with blank password for ‘root’ from 192.168.2.3:60782
Oct 18 07:25:29 swi-mdm9x15 authpriv.warn dropbear[1383]: lastlog_perform_login: Couldn’t stat /var/log/lastlog: No such file or directory
Oct 18 07:25:29 swi-mdm9x15 authpriv.warn dropbear[1383]: lastlog_openseek: /var/log/lastlog is not a file or directory!
Oct 18 07:25:40 swi-mdm9x15 user.info Legato: INFO | modemDaemon[481]/le_pa T=main | pa_mrc_qmi.c pa_mrc_GetNetworkRegState() 2040 | called
Oct 18 07:25:57 swi-mdm9x15 user.info Legato: INFO | dcsDaemon[477]/dataConnectionService T=main | dcsServer.c CloseSessionEventHandler() 1419 | Client 0x416f4 killed, remove allocated ressources
Oct 18 07:25:57 swi-mdm9x15 user.info Legato: INFO | WP85XXApp[1012]/WP85XXComp_WP85XX T=main | WP85XXComp.c main_loop() 417 | WP85XX: Testing Connection
Oct 18 07:25:57 swi-mdm9x15 user.crit Legato: CRT | WP85XXApp[1012]/WP85XXComp_WP85XX T=main | mdmTools.c TestDataConnectionV4() 508 | WP85XX: About to run "ping -c 4 -W 9 www_google.co.za"
Oct 18 07:25:57 swi-mdm9x15 user.err Legato: =ERR= | WP85XXApp[1012] | ping: bad address 'www_google.co.za’
Oct 18 07:25:57 swi-mdm9x15 user.crit Legato: CRT | WP85XXApp[1012]/WP85XXComp_WP85XX T=main | mdmTools.c TestDataConnectionV4() 510 | WP85XX: Returned with 256
Oct 18 07:25:57 swi-mdm9x15 user.crit Legato: CRT | WP85XXApp[1012]/WP85XXComp_WP85XX T=main | mdmTools.c TestDataConnectionV4() 519 | WP85XX: Reporting FAIL into buffer
Oct 18 07:25:57 swi-mdm9x15 user.info Legato: INFO | WP85XXApp[1012]/WP85XXComp_WP85XX T=main | WP85XXComp.c main_loop() 435 | WP85XX: Failed to connect to www_google.co.za.
Oct 18 07:26:28 swi-mdm9x15 user.info Legato: INFO | WP85XXApp[1012]/WP85XXComp_WP85XX T=main | WP85XXComp.c main_loop() 417 | WP85XX: Testing Connection
Oct 18 07:26:28 swi-mdm9x15 user.crit Legato: CRT | WP85XXApp[1012]/WP85XXComp_WP85XX T=main | mdmTools.c TestDataConnectionV4() 508 | WP85XX: About to run "ping -c 4 -W 9 www_google.co.za"
Oct 18 07:26:28 swi-mdm9x15 user.err Legato: =ERR= | WP85XXApp[1012] | ping: bad address 'www_google.co.za’
Oct 18 07:26:28 swi-mdm9x15 user.crit Legato: CRT | WP85XXApp[1012]/WP85XXComp_WP85XX T=main | mdmTools.c TestDataConnectionV4() 510 | WP85XX: Returned with 256
Oct 18 07:26:28 swi-mdm9x15 user.crit Legato: CRT | WP85XXApp[1012]/WP85XXComp_WP85XX T=main | mdmTools.c TestDataConnectionV4() 519 | WP85XX: Reporting FAIL into buffer
Oct 18 07:26:28 swi-mdm9x15 user.info Legato: INFO | WP85XXApp[1012]/WP85XXComp_WP85XX T=main | WP85XXComp.c main_loop() 435 | WP85XX: Failed to connect to www_google.co.za.
Oct 18 07:26:59 swi-mdm9x15 user.info Legato: INFO | WP85XXApp[1012]/WP85XXComp_WP85XX T=main | WP85XXComp.c main_loop() 417 | WP85XX: Testing Connection
Oct 18 07:26:59 swi-mdm9x15 user.crit Legato: CRT | WP85XXApp[1012]/WP85XXComp_WP85XX T=main | mdmTools.c TestDataConnectionV4() 508 | WP85XX: About to run "ping -c 4 -W 9 www_google.co.za"
Oct 18 07:26:59 swi-mdm9x15 user.err Legato: =ERR= | WP85XXApp[1012] | ping: bad address 'www_google.co.za’
Oct 18 07:26:59 swi-mdm9x15 user.crit Legato: CRT | WP85XXApp[1012]/WP85XXComp_WP85XX T=main | mdmTools.c TestDataConnectionV4() 510 | WP85XX: Returned with 256
Oct 18 07:26:59 swi-mdm9x15 user.crit Legato: CRT | WP85XXApp[1012]/WP85XXComp_WP85XX T=main | mdmTools.c TestDataConnectionV4() 519 | WP85XX: Reporting FAIL into buffer
Oct 18 07:26:59 swi-mdm9x15 user.info Legato: INFO | WP85XXApp[1012]/WP85XXComp_WP85XX T=main | WP85XXComp.c main_loop() 435 | WP85XX: Failed to connect to www_google.co.za.
Oct 18 07:27:17 swi-mdm9x15 user.info Legato: INFO | modemDemo[486]/demoComponent_modemFams T=main | demo.c ConnectionStateHandler() 1015 | Connection State Event: ‘’ not connected
Oct 18 07:27:30 swi-mdm9x15 user.info Legato: INFO | WP85XXApp[1012]/WP85XXComp_WP85XX T=main | WP85XXComp.c main_loop() 417 | WP85XX: Testing Connection
Oct 18 07:27:30 swi-mdm9x15 user.crit Legato: CRT | WP85XXApp[1012]/WP85XXComp_WP85XX T=main | mdmTools.c TestDataConnectionV4() 508 | WP85XX: About to run "ping -c 4 -W 9 www_google.co.za"
Oct 18 07:27:30 swi-mdm9x15 user.err Legato: =ERR= | WP85XXApp[1012] | ping: bad address 'www_google.co.za’
Oct 18 07:27:30 swi-mdm9x15 user.crit Legato: CRT | WP85XXApp[1012]/WP85XXComp_WP85XX T=main | mdmTools.c TestDataConnectionV4() 510 | WP85XX: Returned with 256
Oct 18 07:27:30 swi-mdm9x15 user.crit Legato: CRT | WP85XXApp[1012]/WP85XXComp_WP85XX T=main | mdmTools.c TestDataConnectionV4() 519 | WP85XX: Reporting FAIL into buffer
Oct 18 07:27:30 swi-mdm9x15 user.info Legato: INFO | WP85XXApp[1012]/WP85XXComp_WP85XX T=main | WP85XXComp.c main_loop() 435 | WP85XX: Failed to connect to www_google.co.za.
Oct 18 07:27:51 swi-mdm9x15 user.warn Legato: -WRN- | dcsDaemon[477]/dataConnectionService T=Data Thread | dcsServer.c TryStartDataSession() 998 | Could not save the default gateway
Oct 18 07:27:51 swi-mdm9x15 user.err Legato: =ERR= | dcsDaemon[477] | route: SIOCADDRT: Network is unreachable
Oct 18 07:27:51 swi-mdm9x15 user.info Legato: INFO | dcsDaemon[477]/dataConnectionService T=Data Thread | dcsServer.c AddNameserversToResolvConf() 653 | Set DNS ‘196.207.32.83’ '196.207.32.69’
Oct 18 07:27:56 swi-mdm9x15 user.info Legato: INFO | modemDemo[486]/demoComponent_modemFams T=main | demo.c ConnectionStateHandler() 1015 | Connection State Event: ‘rmnet0’ connected
Oct 18 07:28:01 swi-mdm9x15 user.info Legato: INFO | WP85XXApp[1012]/WP85XXComp_WP85XX T=main | WP85XXComp.c main_loop() 417 | WP85XX: Testing Connection
Oct 18 07:28:01 swi-mdm9x15 user.crit Legato: CRT | WP85XXApp[1012]/WP85XXComp_WP85XX T=main | mdmTools.c TestDataConnectionV4() 508 | WP85XX: About to run "ping -c 4 -W 9 www_google.co.za"
Oct 18 07:28:01 swi-mdm9x15 user.err Legato: =ERR= | WP85XXApp[1012] | ping: bad address 'www_google.co.za’
Oct 18 07:28:01 swi-mdm9x15 user.crit Legato: CRT | WP85XXApp[1012]/WP85XXComp_WP85XX T=main | mdmTools.c TestDataConnectionV4() 510 | WP85XX: Returned with 256
Oct 18 07:28:01 swi-mdm9x15 user.crit Legato: CRT | WP85XXApp[1012]/WP85XXComp_WP85XX T=main | mdmTools.c TestDataConnectionV4() 519 | WP85XX: Reporting FAIL into buffer
Oct 18 07:28:01 swi-mdm9x15 user.info Legato: INFO | WP85XXApp[1012]/WP85XXComp_WP85XX T=main | WP85XXComp.c main_loop() 435 | WP85XX: Failed to connect to www_google.co.za.
Oct 18 07:28:32 swi-mdm9x15 user.info Legato: INFO | WP85XXApp[1012]/WP85XXComp_WP85XX T=main | WP85XXComp.c main_loop() 417 | WP85XX: Testing Connection
Oct 18 07:28:32 swi-mdm9x15 user.crit Legato: CRT | WP85XXApp[1012]/WP85XXComp_WP85XX T=main | mdmTools.c TestDataConnectionV4() 508 | WP85XX: About to run "ping -c 4 -W 9 www_google.co.za"
Oct 18 07:28:32 swi-mdm9x15 user.err Legato: =ERR= | WP85XXApp[1012] | ping: bad address 'www_google.co.za’
Oct 18 07:28:32 swi-mdm9x15 user.crit Legato: CRT | WP85XXApp[1012]/WP85XXComp_WP85XX T=main | mdmTools.c TestDataConnectionV4() 510 | WP85XX: Returned with 256
Oct 18 07:28:32 swi-mdm9x15 user.crit Legato: CRT | WP85XXApp[1012]/WP85XXComp_WP85XX T=main | mdmTools.c TestDataConnectionV4() 519 | WP85XX: Reporting FAIL into buffer
Oct 18 07:28:32 swi-mdm9x15 user.err Legato: =ERR= | WP85XXApp[1012]/WP85XXComp_WP85XX T=main | WP85XXComp.c main_loop() 431 | WP85XX: All ping retries have been used up.
Oct 18 07:28:32 swi-mdm9x15 user.info Legato: INFO | WP85XXApp[1012]/WP85XXComp_WP85XX T=main | WP85XXComp.c main_loop() 435 | WP85XX: Failed to connect to www_google.co.za.
Oct 18 07:29:03 swi-mdm9x15 user.info Legato: INFO | WP85XXApp[1012]/WP85XXComp_WP85XX T=main | mdmTools.c bGprsDisconnect() 478 | Stopping Data Connection
Oct 18 07:29:03 swi-mdm9x15 user.info Legato: INFO | WP85XXApp[1012]/WP85XXComp_WP85XX T=main | WP85XXComp.c main_loop() 442 | WP85XX: Data disconnection success
Oct 18 07:29:04 swi-mdm9x15 user.info Legato: INFO | WP85XXApp[1012]/WP85XXComp_WP85XX T=main | mdmTools.c bSetRadPwr() 41 | Radio Power was allready ON
Oct 18 07:29:08 swi-mdm9x15 user.info Legato: INFO | WP85XXApp[1012]/WP85XXComp_WP85XX T=main | mdmTools.c bSetRadPwr() 54 | Switching OFF radio power
Oct 18 07:29:09 swi-mdm9x15 user.info Legato: INFO | modemDemo[486]/demoComponent_modemFams T=main | demo.c ConnectionStateHandler() 1015 | Connection State Event: ‘’ not connected
Oct 18 07:29:20 swi-mdm9x15 user.info Legato: INFO | WP85XXApp[1012]/WP85XXComp_WP85XX T=main | WP85XXComp.c main_loop() 179 | Selecting another sim
Oct 18 07:29:20 swi-mdm9x15 user.info Legato: INFO | WP85XXApp[1012]/WP85XXComp_WP85XX T=main | mdmTools.c bSelectNextSim() 111 | WP85XX: Selected sim card 3
Oct 18 07:29:25 swi-mdm9x15 user.info Legato: INFO | WP85XXApp[1012]/WP85XXComp_WP85XX T=main | mdmTools.c bSetRadPwr() 37 | Switching ON radio power
Oct 18 07:29:37 swi-mdm9x15 user.info Legato: INFO | WP85XXApp[1012]/WP85XXComp_WP85XX T=main | WP85XXComp.c main_loop() 192 | Testing if we detect sim-card
Oct 18 07:29:39 swi-mdm9x15 user.err Legato: =ERR= | modemDaemon[481]/swiQmi T=main | swiQmi.c swiQmi_CheckResponse() 768 | Sending QMI_WDS_START_NETWORK_INTERFACE_REQ_V01 failed: rc=0 (), resp.result=1.[0x01], resp.error=14.[0x0e]
Oct 18 07:29:39 swi-mdm9x15 user.err Legato: =ERR= | modemDaemon[481]/le_pa T=main | pa_mdc_qmi.c StartSession() 1686 | Data connection failure Call End provided 44, Code 12
Oct 18 07:29:39 swi-mdm9x15 user.err Legato: =ERR= | modemDaemon[481]/le_pa T=main | pa_mdc_qmi.c StartSession() 1697 | Data connection failure Verbose Call End provided Type 2, Verbose 201
Oct 18 07:29:39 swi-mdm9x15 user.err Legato: =ERR= | modemDaemon[481]/modemDaemon T=main | le_mdc.c le_mdc_StartSession() 797 | Get Connection failure 44, 12, 2, 201
Oct 18 07:29:39 swi-mdm9x15 user.err Legato: =ERR= | modemDaemon[481]/swiQmi T=main | swiQmi.c swiQmi_CheckResponse() 768 | Sending QMI_WDS_START_NETWORK_INTERFACE_REQ_V01 failed: rc=0 (), resp.result=1.[0x01], resp.error=14.[0x0e]
Oct 18 07:29:39 swi-mdm9x15 user.err Legato: =ERR= | modemDaemon[481]/le_pa T=main | pa_mdc_qmi.c StartSession() 1686 | Data connection failure Call End provided 44, Code 12
Oct 18 07:29:39 swi-mdm9x15 user.err Legato: =ERR= | modemDaemon[481]/le_pa T=main | pa_mdc_qmi.c StartSession() 1697 | Data connection failure Verbose Call End provided Type 2, Verbose 201
Oct 18 07:29:39 swi-mdm9x15 user.err Legato: =ERR= | modemDaemon[481]/modemDaemon T=main | le_mdc.c le_mdc_StartSession() 797 | Get Connection failure 44, 12, 2, 201

The unit only recovered after a power cycle.
After that the unit was connecting beutifully for 2 hours, while I was trying to recreate the problem.

I had just given up, and moved the unit back to the development bench, when it started up then, it was back on IPV6-only. I was then able to capture the logread for it, and then I also did a “radio power off” & “… on” , while capturing the logread, but it didn’t really print much. I will post it in next post for readability

5

This is the dump of when the unit started up with IPV6 only again

root@swi-mdm9x15:~# ifconfig
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:0 errors:0 dropped:0 overruns:0 frame:0
TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:0 (0.0 B) TX bytes:0 (0.0 B)

usb0 Link encap:Ethernet HWaddr 92:1C:6D:35:22:43
inet addr:192.168.2.2 Bcast:192.168.2.255 Mask:255.255.255.0
inet6 addr: fe80::901c:6dff:fe35:2243/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:1867 errors:0 dropped:0 overruns:0 frame:0
TX packets:1243 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:159721 (155.9 KiB) TX bytes:578384 (564.8 KiB)

root@swi-mdm9x15:~# cm data info
Index: 1
APN: internet
PDP Type: IPV4
Connected: no

root@swi-mdm9x15:~# cm data connect 30 &
root@swi-mdm9x15:~# cm data info
Index: 1
APN: internet
PDP Type: IPV4
Connected: yes

root@swi-mdm9x15:~# ifconfig
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:0 errors:0 dropped:0 overruns:0 frame:0
TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:0 (0.0 B) TX bytes:0 (0.0 B)

rmnet0 Link encap:UNSPEC HWaddr 00-00-00-00-00-00-00-00-00-00-00-00-00-00-00-00
inet6 addr: fe80::7210:c1d2:bc7c:9f13/64 Scope:Link
UP RUNNING MTU:1430 Metric:1
RX packets:0 errors:0 dropped:0 overruns:0 frame:0
TX packets:72 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:0 (0.0 B) TX bytes:16304 (15.9 KiB)

usb0 Link encap:Ethernet HWaddr 92:1C:6D:35:22:43
inet addr:192.168.2.2 Bcast:192.168.2.255 Mask:255.255.255.0
inet6 addr: fe80::901c:6dff:fe35:2243/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:2093 errors:0 dropped:0 overruns:0 frame:0
TX packets:1391 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:179185 (174.9 KiB) TX bytes:599348 (585.3 KiB)

root@swi-mdm9x15:~# Connected through interface ‘rmnet0’

root@swi-mdm9x15:~# ifconfig
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:0 errors:0 dropped:0 overruns:0 frame:0
TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:0 (0.0 B) TX bytes:0 (0.0 B)

rmnet0 Link encap:UNSPEC HWaddr 00-00-00-00-00-00-00-00-00-00-00-00-00-00-00-00
inet6 addr: fe80::7210:c1d2:bc7c:9f13/64 Scope:Link
UP RUNNING MTU:1430 Metric:1
RX packets:0 errors:0 dropped:0 overruns:0 frame:0
TX packets:75 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:0 (0.0 B) TX bytes:16752 (16.3 KiB)

usb0 Link encap:Ethernet HWaddr 92:1C:6D:35:22:43
inet addr:192.168.2.2 Bcast:192.168.2.255 Mask:255.255.255.0
inet6 addr: fe80::901c:6dff:fe35:2243/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:2149 errors:0 dropped:0 overruns:0 frame:0
TX packets:1426 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:183535 (179.2 KiB) TX bytes:605328 (591.1 KiB)

root@swi-mdm9x15:~# ping www.google.co.za
ping: bad address 'www.google.co.za’
root@swi-mdm9x15:~#
root@swi-mdm9x15:~# cm radio off
Disconnected
root@swi-mdm9x15:~#
root@swi-mdm9x15:~#
[1]+ Done cm data connect 30
root@swi-mdm9x15:~# cm data info
Index: 1
APN: internet
PDP Type: IPV4
Connected: no

root@swi-mdm9x15:~# cm radio on
root@swi-mdm9x15:~# cm radio status
Power: ON
Current Network Operator: VodaCom-SA
RAT: UMTS network (LE_MRC_RAT_UMTS)
Status: Registered, home network (LE_MRC_REG_HOME)
Signal: Very weak signal strength (1)

root@swi-mdm9x15:~# cm data connect 30 &
root@swi-mdm9x15:~# cm data info
Index: 1
APN: internet
PDP Type: IPV4
Connected: no

root@swi-mdm9x15:~# cm data info
Index: 1
APN: internet
PDP Type: IPV4
Connected: yes

root@swi-mdm9x15:~# ifconfig
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:0 errors:0 dropped:0 overruns:0 frame:0
TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:0 (0.0 B) TX bytes:0 (0.0 B)

rmnet0 Link encap:UNSPEC HWaddr 00-00-00-00-00-00-00-00-00-00-00-00-00-00-00-00
inet6 addr: fe80::4024:21dd:6dbc:446f/64 Scope:Link
UP RUNNING MTU:1430 Metric:1
RX packets:0 errors:0 dropped:0 overruns:0 frame:0
TX packets:85 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:0 (0.0 B) TX bytes:18560 (18.1 KiB)

usb0 Link encap:Ethernet HWaddr 92:1C:6D:35:22:43
inet addr:192.168.2.2 Bcast:192.168.2.255 Mask:255.255.255.0
inet6 addr: fe80::901c:6dff:fe35:2243/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:2395 errors:0 dropped:0 overruns:0 frame:0
TX packets:1635 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:203441 (198.6 KiB) TX bytes:634243 (619.3 KiB)

root@swi-mdm9x15:~# Connected through interface ''
Disconnected

[1]+ Done cm data connect 30
root@swi-mdm9x15:~# ifconfig
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:0 errors:0 dropped:0 overruns:0 frame:0
TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:0 (0.0 B) TX bytes:0 (0.0 B)

rmnet0 Link encap:UNSPEC HWaddr 00-00-00-00-00-00-00-00-00-00-00-00-00-00-00-00
inet6 addr: fe80::4024:21dd:6dbc:446f/64 Scope:Link
UP RUNNING MTU:1430 Metric:1
RX packets:0 errors:0 dropped:0 overruns:0 frame:0
TX packets:88 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:0 (0.0 B) TX bytes:19008 (18.5 KiB)

usb0 Link encap:Ethernet HWaddr 92:1C:6D:35:22:43
inet addr:192.168.2.2 Bcast:192.168.2.255 Mask:255.255.255.0
inet6 addr: fe80::901c:6dff:fe35:2243/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:2433 errors:0 dropped:0 overruns:0 frame:0
TX packets:1660 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:206150 (201.3 KiB) TX bytes:640532 (625.5 KiB)

root@swi-mdm9x15:~#

Linux swi-mdm9x15 3.14.29ltsi-13c67b16ff_922830eb31 #2 PREEMPT Fri Apr 15 02:38:16 PDT 2016 armv7l GNU/Linux
root@swi-mdm9x15:~# logread -f
Oct 18 08:56:26 swi-mdm9x15 user.info Legato: INFO | modemDaemon[477]/le_pa T=main | pa_mrc_qmi.c pa_mrc_GetNetworkRegState() 2040 | called
Oct 18 08:56:31 swi-mdm9x15 user.info Legato: INFO | dcsDaemon[474]/dataConnectionService T=main | dcsServer.c CloseSessionEventHandler() 1419 | Client 0x3308c killed, remove allocated ressources
Oct 18 08:56:31 swi-mdm9x15 user.warn Legato: -WRN- | dcsDaemon[474]/dataConnectionService T=Data Thread | dcsServer.c TryStartDataSession() 998 | Could not save the default gateway
Oct 18 08:56:32 swi-mdm9x15 user.err Legato: =ERR= | dcsDaemon[474] | route: SIOCADDRT: Network is unreachable
Oct 18 08:56:32 swi-mdm9x15 user.info Legato: INFO | dcsDaemon[474]/dataConnectionService T=Data Thread | dcsServer.c AddNameserversToResolvConf() 653 | Set DNS ‘196.207.32.83’ '196.207.32.69’
Oct 18 08:57:03 swi-mdm9x15 daemon.info dnsmasq[708]: reading /etc/resolv.conf
Oct 18 08:57:03 swi-mdm9x15 daemon.info dnsmasq[708]: using nameserver 196.207.32.83#53
Oct 18 08:57:03 swi-mdm9x15 daemon.info dnsmasq[708]: using nameserver 196.207.32.69#53
Oct 18 08:57:03 swi-mdm9x15 daemon.info dnsmasq[708]: using nameserver 8.8.8.8#53
Oct 18 08:57:04 swi-mdm9x15 user.info Legato: INFO | dcsDaemon[474]/dataConnectionService T=main | dcsServer.c CloseSessionEventHandler() 1419 | Client 0x28a3c killed, remove allocated ressources
Oct 18 08:57:07 swi-mdm9x15 user.err Legato: =ERR= | modemDaemon[477]/swiQmi T=main | swiQmi.c swiQmi_CheckResponse() 768 | Sending QMI_NAS_GET_RF_BAND_INFO_REQ_MSG_V01 failed: rc=0 (), resp.result=1.[0x01], resp.error=74.[0x4a]
Oct 18 08:57:07 swi-mdm9x15 user.err Legato: =ERR= | modemDaemon[477]/swiQmi T=main | swiQmi.c swiQmi_CheckResponse() 768 | Sending QMI_WDS_GET_RUNTIME_SETTINGS_REQ_V01 failed: rc=0 (), resp.result=1.[0x01], resp.error=15.[0x0f]
Oct 18 08:57:08 swi-mdm9x15 user.info Legato: INFO | dcsDaemon[474]/dataConnectionService T=main | dcsServer.c CloseSessionEventHandler() 1419 | Client 0x28a3c killed, remove allocated ressources
Oct 18 08:57:13 swi-mdm9x15 user.info Legato: INFO | modemDaemon[477]/modemDaemon T=main | le_mrc.c SignalStrengthIndHandlerFunc() 630 | Signal Strength Ind Handler called with RAT.4 and ss.-125
Oct 18 08:57:13 swi-mdm9x15 user.info Legato: INFO | modemDaemon[477]/modemDaemon T=main | le_mrc.c SignalStrengthIndHandlerFunc() 630 | Signal Strength Ind Handler called with RAT.2 and ss.-104
Oct 18 08:57:15 swi-mdm9x15 user.info Legato: INFO | modemDaemon[477]/le_pa T=main | pa_mrc_qmi.c pa_mrc_GetNetworkRegState() 2040 | called
Oct 18 08:57:24 swi-mdm9x15 user.err Legato: =ERR= | modemDaemon[477]/swiQmi T=main | swiQmi.c swiQmi_CheckResponse() 768 | Sending QMI_WDS_GET_RUNTIME_SETTINGS_REQ_V01 failed: rc=0 (), resp.result=1.[0x01], resp.error=15.[0x0f]
Oct 18 08:57:25 swi-mdm9x15 user.info Legato: INFO | dcsDaemon[474]/dataConnectionService T=main | dcsServer.c CloseSessionEventHandler() 1419 | Client 0x3308c killed, remove allocated ressources
Oct 18 08:57:38 swi-mdm9x15 user.info Legato: INFO | dcsDaemon[474]/dataConnectionService T=main | dcsServer.c CloseSessionEventHandler() 1419 | Client 0x3308c killed, remove allocated ressources
Oct 18 08:57:40 swi-mdm9x15 user.warn Legato: -WRN- | dcsDaemon[474]/dataConnectionService T=Data Thread | dcsServer.c TryStartDataSession() 998 | Could not save the default gateway
Oct 18 08:57:40 swi-mdm9x15 user.err Legato: =ERR= | dcsDaemon[474] | route: SIOCADDRT: Network is unreachable
Oct 18 08:57:40 swi-mdm9x15 user.info Legato: INFO | dcsDaemon[474]/dataConnectionService T=Data Thread | dcsServer.c AddNameserversToResolvConf() 653 | Set DNS ‘196.207.32.83’ '196.207.32.69’
Oct 18 08:57:46 swi-mdm9x15 user.warn Legato: -WRN- | dcsDaemon[474]/dataConnectionService T=Data Thread | dcsServer.c SetDefaultGateway() 459 | Gateway or Interface are empty
Oct 18 08:57:46 swi-mdm9x15 user.info Legato: INFO | modemDaemon[477]/le_pa T=main | pa_mrc_qmi.c pa_mrc_GetNetworkRegState() 2040 | called
Oct 18 08:57:46 swi-mdm9x15 user.err Legato: =ERR= | modemDaemon[477]/swiQmi T=main | swiQmi.c swiQmi_CheckResponse() 768 | Sending QMI_WDS_GET_RUNTIME_SETTINGS_REQ_V01 failed: rc=0 (), resp.result=1.[0x01], resp.error=15.[0x0f]
Oct 18 08:57:46 swi-mdm9x15 user.info Legato: INFO | dcsDaemon[474]/dataConnectionService T=main | dcsServer.c CloseSessionEventHandler() 1419 | Client 0x28a3c killed, remove allocated ressources
Oct 18 08:58:21 swi-mdm9x15 user.warn Legato: -WRN- | dcsDaemon[474]/dataConnectionService T=Data Thread | dcsServer.c TryStartDataSession() 998 | Could not save the default gateway
Oct 18 08:58:21 swi-mdm9x15 user.err Legato: =ERR= | dcsDaemon[474] | route: SIOCADDRT: Network is unreachable
Oct 18 08:58:21 swi-mdm9x15 user.info Legato: INFO | dcsDaemon[474]/dataConnectionService T=Data Thread | dcsServer.c AddNameserversToResolvConf() 653 | Set DNS ‘196.207.32.83’ '196.207.32.69’
Oct 18 08:58:27 swi-mdm9x15 user.warn Legato: -WRN- | dcsDaemon[474]/dataConnectionService T=Data Thread | dcsServer.c SetDefaultGateway() 459 | Gateway or Interface are empty
Oct 18 08:58:27 swi-mdm9x15 user.err Legato: =ERR= | modemDaemon[477]/swiQmi T=main | swiQmi.c swiQmi_CheckResponse() 768 | Sending QMI_WDS_GET_RUNTIME_SETTINGS_REQ_V01 failed: rc=0 (), resp.result=1.[0x01], resp.error=15.[0x0f]

6

hi,
Will look into this and get back to you.
regards,
ashish

7

Any feedback yet, I am very desperate, even if it is only a workaround for now?

Thanks

8

I have opened an internal ticket. Waiting for response

9

Here are some questions:
a. one unit works, other doesnt : please confirm
b. can we ati and ati8 output for both units. To get to at command port: do microcom -E /dev/ttyAT on the terminal.
c. Is there a reception issue with where this test is done? Happens in lab but not other places?

10

Hello. Im using standart cm data connect, how i can disable ipv6, disable dhcp for ipv6?

11

you can try
at+CGDCONT=1,“IP”,“APN”

this will use ipv4 in profile 1.

1 Like