Hi all!
Trying to get a C819G-4G-V-K9 up and running as a basic LTE modem/router. I'm running into some strange issues with the modem and can't figure out what's going on.
I was trying to get the modem working with a US Mobile SIM card. In the process of setting up profiles, I believe I somehow caused the modem to stop functioning. Using the show cell 0 radio command, I was originally seeing a very good signal of around -40dBm, but after a few reboots and some deletion/creation of profiles, the show cell 0 radio command now just shows a signal strength of -128dBm, and doesn't change. I haven't touched anything with the antenna/RF setup, so I'm thinking the changes to the profiles must've messed something else.
Here's the current output of my show cell 0 all:
Hardware Information
====================
Modem Firmware Version = SWI9600M_03.05.10.06ap
Modem Firmware built = 2012/11/12 15:07:45
Hardware Version = 20
Device Model ID: MC7750
Package Identifier ID: MC7750_03.05.10.06_00_vzw_033.011_000
International Mobile Subscriber Identity (IMSI) = 310<redacted>
International Mobile Equipment Identity (IMEI) = 9900<redacted>
Integrated Circuit Card ID (ICCID) = 8901260851186688331
Mobile Subscriber Integrated Services
Digital Network-Number (MSISDN) =
Current Modem Temperature = 28 deg C
PRI SKU ID = 9902589, PRI version = 01.00
Profile Information
====================
Profile 1 = INACTIVE **
--------
PDP Type = IPv4
Access Point Name (APN) = pwg
Authentication = None
Profile 3 = INACTIVE*
--------
PDP Type = IPv4
Access Point Name (APN) = pwg
Authentication = None
* - Default profile
** - LTE attach profile
Data Connection Information
===========================
Data Transmitted = 0 bytes, Received = 0 bytes
Profile 1, Packet Session Status = INACTIVE
Profile 2, Packet Session Status = INACTIVE
Profile 3, Packet Session Status = INACTIVE
Profile 4, Packet Session Status = INACTIVE
Profile 5, Packet Session Status = INACTIVE
Profile 6, Packet Session Status = INACTIVE
Network Information
===================
Current System Time = Sat Sep 10 23:9:32 2016
Current Service Status = No service
Current Service = Unknown
Current Roaming Status = Roaming
Network Selection Mode = Automatic
Network = US Mobile
Mobile Country Code (MCC) = 65535
Mobile Network Code (MNC) = 65535
Packet switch domain(PS) state = Not attached
Cell ID = 0
Primary Scrambling Code = 65535
Radio Information
=================
Radio power mode = ON
Channel Number = 0
Current Band = Unknown
Current RSSI = -128 dBm
Radio Access Technology(RAT) Preference = AUTO
Radio Access Technology(RAT) Selected = AUTO
Modem Security Information
==========================
Card Holder Verification (CHV1) = Disabled
SIM Status = OK
SIM User Operation Required = None
Number of CHV1 Retries remaining = 3
GPS Information
==========================
GPS Info
-------------
GPS Feature: enabled
GPS Port Selected: Dedicated GPS port
GPS State: GPS disabled
SMS Information
===============
Incoming Message Information
----------------------------
SMS stored in modem = 0
SMS archived since booting up = 0
Total SMS deleted since booting up = 0
Storage records allocated = 25
Storage records used = 0
Number of callbacks triggered by SMS = 0
Number of successful archive since booting up = 0
Number of failed archive since booting up = 0
Outgoing Message Information
----------------------------
Total SMS sent successfully = 0
Total SMS send failure = 0
Number of outgoing SMS pending = 0
Number of successful archive since booting up = 0
Number of failed archive since booting up = 0
Last Outgoing SMS Status = SUCCESS
Copy-to-SIM Status = 0x0
Send-to-Network Status = 0x0
Report-Outgoing-Message-Number:
Reference Number = 0
Result Code = 0x0
Diag Code = 0x0 0x0 0x0 0x0 0x0
SMS Archive URL =
Error Information
=================
This command is not supported on 4G modems.
Modem Crashdump Information
===========================
Modem crashdump logging: off
I'm in a downtown location, with a high-gain LTE antenna, so I know my RF configuration is fine. Like I said earlier, this same antenna setup was getting me around -40dBm signal strength. The two identical profiles is probably not correct, and I'm also wondering if deleting the existing profiles that were on the device (related to verizon) also could've screwed things up even though I'm now using a different carrier (US Mobile). Knowing how to get those back to what they were by default would be useful.
My configuration was built following the 4G LTE WWAN guide: (sanitized of course)
Current configuration : 2422 bytes
!
version 15.4
service timestamps debug datetime msec
service timestamps log datetime msec
no service password-encryption
!
hostname axel-c819g
!
boot-start-marker
boot-end-marker
!
!
enable secret 5 <>
enable password <>
!
no aaa new-model
!
!
!
!
!
!
!
!
!
!
!
!
!
!
ip domain name axel.mobile
ip cef
no ipv6 cef
!
!
!
!
!
multilink bundle-name authenticated
!
!
chat-script lte "" "AT!CALL1" TIMEOUT 20 "OK"
!
!
!
!
!
!
cts logging verbose
license udi pid C819G-4G-V-K9 sn <>
!
!
vtp mode transparent
!
!
!
!
!
controller Cellular 0
lte modem link-recovery rssi onset-threshold -110
lte modem link-recovery monitor-timer 20
lte modem link-recovery wait-timer 10
lte modem link-recovery debounce-count 6
!
vlan 41
!
vlan 100
name axel-mobile
!
!
!
!
!
!
!
!
!
!
!
interface Cellular0
ip address negotiated
ip nat outside
no ip virtual-reassembly in
encapsulation slip
dialer in-band
dialer string lte
dialer-group 1
!
interface FastEthernet0
switchport access vlan 100
no ip address
shutdown
!
interface FastEthernet1
switchport access vlan 100
no ip address
shutdown
!
interface FastEthernet2
switchport access vlan 100
no ip address
shutdown
!
interface FastEthernet3
switchport access vlan 100
no ip address
shutdown
!
interface GigabitEthernet0
ip address 192.168.0.200 255.255.255.0
duplex auto
speed auto
!
interface Serial0
no ip address
shutdown
clock rate 2000000
!
interface Vlan1
no ip address
shutdown
!
interface Vlan100
ip address 192.168.100.1 255.255.255.0
ip nat inside
ip virtual-reassembly in
!
ip forward-protocol nd
no ip http server
no ip http secure-server
!
!
ip nat inside source list 2 interface Cellular0 overload
ip route 0.0.0.0 0.0.0.0 Cellular0
!
dialer-list 1 protocol ip list 1
!
access-list 1 permit any
access-list 2 permit 192.168.100.0 0.0.0.255
!
control-plane
!
!
mgcp behavior rsip-range tgcp-only
mgcp behavior comedia-role none
mgcp behavior comedia-check-media-src disable
mgcp behavior comedia-sdp-force disable
!
mgcp profile default
!
!
!
!
!
!
!
line con 0
no modem enable
line aux 0
line 2
no activation-character
no exec
transport preferred none
transport input all
stopbits 1
line 3
script dialer lte
modem InOut
no exec
line vty 0 4
password <>
login
transport input ssh
!
scheduler allocate 20000 1000
!
!
!
end
Assistance is appreciated! I'm new to ISR setup, and this is a hobby project, but I'd really like to get this router up and running on LTE. I've tried a couple factory resets with no luck, so I'm out of ideas and need some troubleshooting guidance.
Thanks!
