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Highlighted
Beginner

LTE connection dropping

Hi All,

 

I'm having really frustrating issues with a C881-4G router and its data connection. I have the same router setup and working so I know my config is right but for some reason this router will not stay connected.

 

I keep getting the following error messages:

 

*Jul 12 07:32:46.179: Ce0 DDR: place call
*Jul 12 07:32:46.179: Ce0 DDR: Dialing cause ip (s=0.0.0.0, d=10.11.2.5)
*Jul 12 07:32:46.179: Ce0 DDR: Attempting to dial lte
*Jul 12 07:32:46.179: CHAT3: Attempting async line dialer script
*Jul 12 07:32:46.179: CHAT3: Dialing using Modem script: lte & System script: none
*Jul 12 07:32:46.179: CHAT3: process started
*Jul 12 07:32:46.179: CHAT3: Asserting DTR
*Jul 12 07:32:46.179: CHAT3: Chat script lte started
*Jul 12 07:32:46.179: CHAT3: Sending string: AT!CALL1
*Jul 12 07:32:46.179: Sending abort response to line:3
*Jul 12 07:32:46.179: CHAT3: Expecting string: OK
*Jul 12 07:33:06.177: CHAT3: Timeout expecting: OK
*Jul 12 07:33:06.177: CHAT3: Chat script lte finished, status = Connection timed out; remote host not responding
*Jul 12 07:33:06.177: TTY3: Line reset by "Async dialer"
*Jul 12 07:33:06.177: Ce0 DDR: disconnecting call
*Jul 12 07:33:06.177: TTY3: Modem: (unknown)->HANGUP
*Jul 12 07:33:06.177: TTY3: no timer type 0 to destroy
*Jul 12 07:33:06.177: TTY3: no timer type 1 to destroy
*Jul 12 07:33:06.177: TTY3: no timer type 3 to destroy
*Jul 12 07:33:06.177: TTY3: no timer type 4 to destroy
*Jul 12 07:33:06.177: TTY3: no timer type 10 to destroy
*Jul 12 07:33:06.177: TTY3: no timer type 2 to destroy
*Jul 12 07:33:06.993: TTY3: dropping DTR, hanging up
*Jul 12 07:33:06.993: tty3: Modem: HANGUP->IDLE
*Jul 12 07:33:11.993: TTY3: restoring DTR
*Jul 12 07:33:21.184: Ce0 DDR: re-enable timeout

This is my config and information for the cellular interface. As you will see it lists no network and I can't change it from 15 (Voda) manually to EE and its always inactive. Nothing seems to work.

 

Hardware Information
====================
Modem Firmware Version = SWI9X15C_05.05.58.00
Modem Firmware built = 2015/03/04 21:30:23
Hardware Version = 1.0
Device Model ID: MC7304
Package Identifier ID: 1102029_9903299_MC7304_05.05.58.00_00_Cisco_005.010_000
International Mobile Subscriber Identity (IMSI) =
International Mobile Equipment Identity (IMEI) = 352761061970175
Integrated Circuit Card ID (ICCID) =
Mobile Subscriber Integrated Services
Digital Network-Number (MSISDN) =
Factory Serial Number (FSN) =
Modem Status = Online
Current Modem Temperature = 33 deg C
PRI SKU ID = 1102029, PRI version = 005.026_000, Carrier = Generic
OEM PRI version = 05.10

Profile Information
====================
Profile password Encryption level: 7


Profile 1 = INACTIVE* **
--------
PDP Type = IPv4
Access Point Name (APN) = everywhere
Authentication = PAP or CHAP
Username: eesecure
Password: 010003074E1903

  * - Default profile
 ** - LTE attach profile


Configured default profile for active SIM 1 is profile 1.


Data Connection Information
===========================
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
Profile 7, Packet Session Status = INACTIVE
Profile 8, Packet Session Status = INACTIVE
Profile 9, Packet Session Status = INACTIVE
Profile 10, Packet Session Status = INACTIVE
Profile 11, Packet Session Status = INACTIVE
Profile 12, Packet Session Status = INACTIVE
Profile 13, Packet Session Status = INACTIVE
Profile 14, Packet Session Status = INACTIVE
Profile 15, Packet Session Status = INACTIVE
Profile 16, Packet Session Status = INACTIVE

Network Information
===================
Current System Time = Fri Jul 12 7:48:3 2019
Current Service Status = No service
Current Service = Unknown
Curr
*Jul 12 07:48:13.910: TTY0: pause timer type 1 (OK)ent Roaming Status = Roaming
Network Selection Mode = Automatic
Network =
Mobile Country Code (MCC) = 234
Mobile Network Code (MNC) = 15
Packet switch domain(PS) state = Not attached
Location Area Code (LAC) = 0
Cell ID = 0
Network MTU = Not Available

Radio Information
=================
Radio power mode = online
Channel Number = 0
Current Band = Unknown
Current RSSI(RSCP) = -80 dBm
Current ECIO = -5 dBm
Primary Scrambling Code = 0x125
Radio Access Technology(RAT) Preference = AUTO
Radio Access Technology(RAT) Selected = UMTS

LTE bands supported by modem:
- Bands 1 3 7 8 20.
LTE band Preference settings for the active sim(slot 1):
- Bands 1 3 7 8 20.

Non-LTE bands supported by modem:
Index:
  72 - GSM DCS band (1800)
  73 - GSM Extended GSM (E-GSM) band (900)
  74 - GSM Primary GSM (P-GSM) band (900)
  84 - GSM 850 band
  86 - GSM PCS band (1900)
  87 - WCDMA (Europe, Japan, and China) 2100 band
  88 - WCDMA US PCS 1900 band
  91 - WCDMA US 850 band
  114 - WCDMA Europe and Japan 900 band
Non-LTE band Preference settings for the active sim(slot 1):
Index:
  72 - GSM DCS band (1800)
  73 - GSM Extended GSM (E-GSM) band (900)
  74 - GSM Primary GSM (P-GSM) band (900)
  84 - GSM 850 band
  86 - GSM PCS band (1900)
  87 - WCDMA (Europe, Japan, and China) 2100 band
  88 - WCDMA US PCS 1900 band
  91 - WCDMA US 850 band
  114 - WCDMA Europe and Japan 900 band

===========================================

Band index reference list:

Indices 1-64 correspond to LTE bands 1-64.

Indices 65-128 correspond to Non-LTE bands.


Modem Security Information
==========================
Active SIM = 1
SIM switchover attempts = 2
Card Holder Verification (CHV1) = Disabled
SIM Status = Not inserted
SIM User Operation Required = None
Number of CHV1 Retries remaining = 0

GPS Information
==========================

GPS Info
-------------
GPS Feature: enabled
GPS Port Selected: Dedicated GPS port
GPS Status: GPS location cannot be acquired
GPS auto tracking status: disabled (Mode is not set)
GPS auto tracking config: disabled
GPS Mode Configured: not configured/unknown
Last Location Fix Error: Not Available [0x0]

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 this platform.


Modem Crashdump Information
===========================
Chassis Model Name is C881G-4G-GA-K9
Platform is MC73xx based
Modem crashdump logging: off

Packet drop stats
=================

Source IP violation stats:
 Total dropped IPv4 packets: 0
 Recently violated IPv4 addresses (Max 4):

 Total dropped IPv6 packets: 0
 Recently violated IPv6 addresses (Max 4):

Can anyone help me with this please?

Everyone's tags (1)
2 REPLIES 2
Highlighted
Beginner

Re: LTE connection dropping

Hello,

 

Is this your main link, or a backup link?

 

BR,

Bogdan

Highlighted
Hall of Fame Expert

Re: LTE connection dropping

Hello Becky,

if the SIM comes from a Vodafone router it may be not usable on a cisco router.

There was a similar thread some days ago and the colleague had tried to re-use a vodafone SIM from a vodafone CPE on a cisco router but he discovered this was not possible. He solved using a different SIM.

 

*Jul 12 07:33:06.177: CHAT3: Chat script lte finished, status = Connection timed out; remote host not responding

 

And

>> Modem Security Information
==========================
Active SIM = 1
SIM switchover attempts = 2
Card Holder Verification (CHV1) = Disabled
SIM Status = Not inserted
SIM User Operation Required = None
Number of CHV1 Retries remaining = 0

 

Hope to help

Giuseppe