Cisco 819-4G SIM Connectivity Issues

[FredHopkins_]

We have a Cisco 819-4G Router which is used for downloading content to screens on a boat. It has worked well for the last few years but within the last week, it has failed to download anything.

I have trouble-shooted today by double-checking the configuration. resetting the router and then re-writingthe config, I tried new aerials, cleaned the SIM card slots and I even tested the SIM card in a mobile device to make sure it wasn't the SIM.

My next guess would be that the router is end of life (originally delivered 17 Jan 2014) and a new one to be purchased but just wanted to check if anyone has any ideas what the fix could be for this before going ahead and buying a new one.

Any help is appreciated. Let me know if you need to see any config.

Thanks,

Fred

[Georg Pauwen]

Hello,

could indeed be a hardware issue. Post the running config anyway, maybe we can spot something. Who is your ISP ?

[Cristian Matei]

Hi,

   Could be the router or the 4G module. Connect to it and investigate.

Regards,

Cristian Matei.

[paul driver]

Hello

Just like to add - Have you relocated this box from its original location or moved some furniture etc - Have you made sure the signal isn't being impeded in anyway?

[FredHopkins_]

Hi Paul,

Can confirm the router is in a position where the service provider of the SIM has a strong signal. As I investigate it more and more it seems to be an issue with the SIM slots as the SIM light doesn't flash at all and there's also no command line log stating a SIM has been recognised (both SIM slots tested).

I assume it's hardware failure but if there's any sort of command that can force search for a SIM that'll be great.

Cheers,

Fred

[Georg Pauwen]

Hello,

try and reinsert the SIM card, then reboot the router, it might get rediscovered...

Also, post the output of:

show cellular x/x/x all

[FredHopkins_]

No luck I'm afraid. Tried this multiple times, with the old SIM card and a newly activated one.

[Georg Pauwen]

Hello,

does your 819 have dual SIM slots (slot 0 and slot 1) ? If so, you might want to try the other slot...

[FredHopkins_]

Have tried this too but no luck.

[Georg Pauwen]

Hello,

when you issue the command:

show cellular x/x/x all

there should be a section similar to this:

Radio Information
=================
Radio power mode = Online
Current RSSI = -125 dBm >>>>>>> either no antenna, or bad antenna or out of network.
Radio power mode = Online
LTE Technology Selected = LTE

Is there any value at 'Current RSSI' ?

[FredHopkins_]

Hi George,

Radio Information
=================
Radio power mode = OFF, Reason = Unknown
Current Band = None, Channel Number = 0
Current RSSI = -0 dBm
Band Selected = not selected due to invalid band mask

[Georg Pauwen]

Hello,

to be honest, it looks pretty dead indeed...

When you boot the router, does the boot sequence shpw any self test failures ?

[FredHopkins_]

Hi George, below is the boot up sequence...

System Bootstrap, Version 15.2(2r)T, RELEASE SOFTWARE (fc1)
Technical Support: http://www.cisco.com/techsupport
Copyright (c) 2012 by cisco Systems, Inc.

Total memory size = 1024 MB
C819G-4G-G-K9 platform with 1048576 Kbytes of main memory
Main memory is configured to 32 bit mode

Readonly ROMMON initialized
program load complete, entry point: 0x4000000, size: 0x18c40
program load complete, entry point: 0x4000000, size: 0x18c40

IOS Image Load Test
___________________
Digitally Signed Production Software
program load complete, entry point: 0x4000000, size: 0x3188fd0
Self decompressing the image : ################################################################################################################################################################################################################################################################################################################################################################################################################################################### [OK]
*** No sreloc section
Smart Init is enabled
smart init is sizing iomem
TYPE MEMORY_REQ
Onboard devices &
buffer pools 0x020ECEC0
-----------------------------------------------
TOTAL: 0x020ECEC0

Rounded IOMEM up to: 32Mb.
Using 3 percent iomem. [32Mb/896Mb]

Restricted Rights Legend

Use, duplication, or disclosure by the Government is
subject to restrictions as set forth in subparagraph
(c) of the Commercial Computer Software - Restricted
Rights clause at FAR sec. 52.227-19 and subparagraph
(c) (1) (ii) of the Rights in Technical Data and Computer
Software clause at DFARS sec. 252.227-7013.

cisco Systems, Inc.
170 West Tasman Drive
San Jose, California 95134-1706

Cisco IOS Software, C800 Software (C800-UNIVERSALK9-M), Version 15.2(4)M4, RELEASE SOFTWARE (fc2)
Technical Support: http://www.cisco.com/techsupport
Copyright (c) 1986-2013 by Cisco Systems, Inc.
Compiled Thu 20-Jun-13 16:14 by prod_rel_team

This product contains cryptographic features and is subject to United
States and local country laws governing import, export, transfer and
use. Delivery of Cisco cryptographic products does not imply
third-party authority to import, export, distribute or use encryption.
Importers, exporters, distributors and users are responsible for
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agree to comply with applicable laws and regulations. If you are unable
to comply with U.S. and local laws, return this product immediately.

A summary of U.S. laws governing Cisco cryptographic products may be found at:
http://www.cisco.com/wwl/export/crypto/tool/stqrg.html

If you require further assistance please contact us by sending email to
export@cisco.com.

Cisco C819G-4G-G-K9 (revision 6.0) with 883788K/33715K bytes of memory.Installed image archive

Processor board ID FCZ1749C5GN
4 FastEthernet interfaces
1 Gigabit Ethernet interface
1 Serial(sync/async) interface
2 terminal lines
1 Virtual Private Network (VPN) Module
1 Cellular interface
1 cisco Embedded AP (s)
DRAM configuration is 32 bits wide
255K bytes of non-volatile configuration memory.
1000944K bytes of ATA System CompactFlash (Read/Write)

SETUP: new interface NVI0 placed in "shutdown" state

Press RETURN to get started!

*Jan 2 00:00:02.691: %IOS_LICENSE_IMAGE_APPLICATION-6-LICENSE_LEVEL: Module name = c800 Next reboot level = advipservices and License = advipservices
*Feb 28 11:52:11.091: %IFMGR-7-NO_IFINDEX_FILE: Unable to open nvram:/ifIndex-table No such file or directory
*Feb 28 11:52:11.431: %VPN_HW-6-INFO_LOC: Crypto engine: onboard 0 State changed to: Initialized
*Feb 28 11:52:13.187: %VPN_HW-6-INFO_LOC: Crypto engine: onboard 0 State changed to: Enabled Unknown WIC in slot(0/3), wic card has an unknown id of 0x72

*Feb 28 11:52:32.231: c3600_scp_set_dstaddr2_idb(184)add = 0 name is Cellular0
*Feb 28 11:52:32.807: %LINK-3-UPDOWN: Interface GigabitEthernet0, changed state to up
*Feb 28 11:52:32.807: %LINK-3-UPDOWN: Interface Serial0, changed state to down
*Feb 28 11:52:33.339: %LINEPROTO-5-UPDOWN: Line protocol on Interface Vlan1, changed state to down
*Feb 28 11:52:33.807: %LINEPROTO-5-UPDOWN: Line protocol on Interface GigabitEthernet0, changed state to down
*Feb 28 11:52:33.807: %LINEPROTO-5-UPDOWN: Line protocol on Interface Serial0, changed state to down
*Feb 28 11:52:34.511: %LINEPROTO-5-UPDOWN: Line protocol on Interface NVI0, changed state to up
*Feb 28 11:52:34.807: %LINK-3-UPDOWN: Interface GigabitEthernet0, changed state to down
*Feb 28 11:53:00.291: %SYS-5-CONFIG_I: Configured from memory by console
*Feb 28 11:53:01.151: %SYS-5-RESTART: System restarted --
Cisco IOS Software, C800 Software (C800-UNIVERSALK9-M), Version 15.2(4)M4, RELEASE SOFTWARE (fc2)
Technical Support: http://www.cisco.com/techsupport
Copyright (c) 1986-2013 by Cisco Systems, Inc.
Compiled Thu 20-Jun-13 16:14 by prod_rel_team
*Feb 28 11:53:01.235: %SNMP-5-COLDSTART: SNMP agent on host uktcbrout06 is undergoing a cold start
*Feb 28 11:53:01.259: ifs_open failed, path flash:1:/env_vars errno 2574
*Feb 28 11:53:01.267: %SSH-5-ENABLED: SSH 1.99 has been enabled
*Feb 28 11:53:01.275: %CRYPTO-6-ISAKMP_ON_OFF: ISAKMP is OFF
*Feb 28 11:53:01.275: %CRYPTO-6-GDOI_ON_OFF: GDOI is OFF
*Feb 28 11:53:02.119: %LINK-5-CHANGED: Interface FastEthernet2, changed state to administratively down
*Feb 28 11:53:02.123: %LINK-5-CHANGED: Interface FastEthernet3, changed state to administratively down
*Feb 28 11:53:02.127: %LINK-5-CHANGED: Interface GigabitEthernet0, changed state to administratively down
*Feb 28 11:53:02.195: %LINK-5-CHANGED: Interface Serial0, changed state to administratively down
*Feb 28 11:53:02.291: %LINK-5-CHANGED: Interface NVI0, changed state to administratively down
*Feb 28 11:53:02.487: %LINK-3-UPDOWN: Interface FastEthernet0, changed state to up
*Feb 28 11:53:02.503: %LINK-3-UPDOWN: Interface FastEthernet1, changed state to up
*Feb 28 11:53:03.119: %LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet2, changed state to down
*Feb 28 11:53:03.123: %LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet3, changed state to down
*Feb 28 11:53:03.291: %LINEPROTO-5-UPDOWN: Line protocol on Interface NVI0, changed state to down
*Feb 28 11:53:03.487: %LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet0, changed state to down
*Feb 28 11:53:03.503: %LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet1, changed state to down
Uboot Image copy passed!!
Linux Image copy passed!!
Rootfs Image copy passed!!
Dtb file copy passed!!
*Feb 28 11:53:10.867: %SECONDCORE-5-BOOTSTAGE: ROMMON on 2nd core UP
*Feb 28 11:53:10.887: %SECONDCORE-5-BOOTSTAGE: AP-BOOTLOADER on 2nd core UP
*Feb 28 11:53:12.043: %SECONDCORE-5-BOOTSTAGE: AP-IOS on 2nd core UP