Hi All,
Since a couple days I'm experiencing an issue with a C819-4G router.
The 4G connection unexpectedly disconnected, and I am unable to get it connected again.
There have been no configuration changes, and this config works fine in a spare router.
I found out that the Modem is not recognized any more.
router#sh cel 0 hardware
Modem Firmware Version =
Modem Firmware built =
Hardware Version =
International Mobile Subscriber Identity (IMSI) =
International Mobile Equipment Identity (IMEI) =
Integrated Circuit Card ID (ICCID) =
Mobile Subscriber Integrated Services
Digital Network-Number (MSISDN) =
Current Modem Temperature = 0 deg C
PRI SKU ID = , PRI version =
#sh controller cel 0
Interface Cellular0
4G WWAN Modem - Global Multimode LTE/DC-HSPA+/HSPA+/HSPA/UMTS/EDGE/GPRS
Cellular modem configuration
======================================
Modem is not recognized as valid
manufacture id: 0x00000000 product id: 0x00000000
Power status: Active
Then I saw the following in the controller output/logs:
router#sh controller cel 0 | beg SKU
SKU in LTE Family, Run DrMaxwell LTE Application
Install Sierra Modem drivers
GobiSerial
GobiUSBNetMod
Done.
Bringing up USB modem, please wait...
Waiting 1 Sec
Waiting 2 Sec
Waiting 3 Sec
Waiting 4 Sec
Waiting 5 Sec
Waiting 6 Sec
Waiting 7 Sec
Waiting 8 Sec
Waiting 9 Sec
Waiting 10 Sec
Waiting 11 Sec
Waiting 12 Sec
Waiting 13 Sec
Waiting 14 Sec
Waiting 15 Sec
Waiting 16 Sec
Waiting 17 Sec
Waiting 18 Sec
Waiting 19 Sec
Waiting 20 Sec
Waiting 21 Sec
Waiting 22 Sec
Waiting 23 Sec
Waiting 24 Sec
Waiting 25 Sec
Waiting 26 Sec
Waiting 27 Sec
Waiting 28 Sec
Waiting 29 Sec
Waiting 30 Sec
Waiting 31 Sec
Modem bringup failed
Configuring ICC driver, please wait...
insmod: cannot insert '/lib/modules/2.6.32/cwan_modems/c800_icc_dev.ko': unknown symbol in module
ifconfig: SIOCSIFADDR: No such device
route: SIOCADDRT: No such device
insmod: cannot insert '/lib/modules/2.6.32/cwan_modems/c800_virt_usb.ko': unknown symbol in module
Done.
Starting cwan_monitor application
Launched cwan_monitor process
Done.
Starting cwan_shim Application
Done.
Starting cwan_watch application
Launched CWAN SHIM Watch Process
Can not open /dev/cwan_cns_api[Thu Jan 1 00:01:40 1970] Can not initialize IPC Library
Done.
Can not open card_mgmt device
Can not open card_mgmt device
Can not open card_mgmt device
/ # [ 774.983124] usb 1-1: new high speed USB device using fsl-ehci and address 2
[ 775.119451] usb 1-1: New USB device found, idVendor=1199, idProduct=68a2
[ 775.119481] usb 1-1: New USB device strings: Mfr=3, Product=2, SerialNumber=4
[ 775.119504] usb 1-1: Product: MC7710
[ 775.119519] usb 1-1: Manufacturer: Sierra Wireless, Incorporated
[ 775.119539] usb 1-1: SerialNumber: 359470040052385
[ 775.120223] usb 1-1: configuration #1 chosen from 1 choice
[ 775.122673] GobiSerial 1-1:1.0: GobiSerial converter detected
[ 775.124344] usb 1-1: GobiSerial converter now attached to ttyUSB0
In comparison this is the output on the spare router:
Install Sierra Modem drivers
GobiSerial
GobiUSBNetMod
Done.
Bringing up USB modem, please wait...
Modem Online, installing CWAN driver modules
cwan_modem modem_vid=0x1199 modem_pid=0x68a2
cwan_proc
cwan_userio
cwan_nfp
Done.
Configuring ICC driver, please wait...
Done.
I'm beginning to think it's some kind of hardware issue or that the modem firmware is corrupted in some way, but I'm not sure.
Has anyone else experienced a problem like this?
Kind regards,
Niels
