I am running into an issue regarding usage of a 1921 (15.3(2)T) and EHWIC-4G-LTE-V (firmware SWI9600M_03.05.10.06).
With the EHWIC installed in the router, I am able to establish a data connection on the Verizon LTE network. RSSI approx -64 consistently.
However, the oddities begin when I connect the LAN (or a laptop, for troubleshooting purposes) to the internal interface (Gig 0/1).
Output when no other devices connected to the router
===============================================
arch-eng-router1#ping 4.2.2.1
Type escape sequence to abort.
Sending 5, 100-byte ICMP Echos to 4.2.2.1, timeout is 2 seconds:
!!!!!
Success rate is 100 percent (5/5), round-trip min/avg/max = 40/80/224 ms
Profile Information
====================
Profile 1 = ACTIVE*
--------
PDP Type = IPv4
PDP address = 10.172.240.7
Access Point Name (APN) = VZWINTERNET
Authentication = None
Username:
Password:
Primary DNS address = 198.224.169.135
Secondary DNS address = 198.224.170.135
* - Default profile
Output when another device is connected to the router
================================================
[Note: 'debug dialer' and 'debug chat' enabled for output]
*Jul 10 03:34:04.643: %LINK-3-UPDOWN: Interface GigabitEthernet0/1, changed state to up
*Jul 10 03:34:05.643: %LINEPROTO-5-UPDOWN: Line protocol on Interface GigabitEthernet0/1, changed state to up
*Jul 10 03:34:09.779: %LINK-5-CHANGED: Interface Cellular0/0/0, changed state to reset
*Jul 10 03:34:09.779: Ce0/0/0 DDR: has total 0 call(s), dial_out 0, dial_in 0
*Jul 10 03:34:09.779: %DIALER-6-UNBIND: Interface Ce0/0/0 unbound from profile Di1
*Jul 10 03:34:09.783: Di1 DDR: No free dialer - starting fast idle timer
*Jul 10 03:34:10.207: Di1: No free dialer - starting fast idle timer
*Jul 10 03:34:10.207: Di1: No free dialer - starting fast idle timer
*Jul 10 03:34:10.211: Di1: No free dialer - starting fast idle timer
*Jul 10 03:34:10.211: Di1: No free dialer - starting fast idle timer
*Jul 10 03:34:10.779: %LINEPROTO-5-UPDOWN: Line protocol on Interface Cellular0/0/0, changed state to down
*Jul 10 03:34:10.783: Di1 DDR: No free dialer - starting fast idle timer
*Jul 10 03:34:11.551: Di1: No free dialer - starting fast idle timer
*Jul 10 03:34:11.551: Di1: No free dialer - starting fast idle timer
*Jul 10 03:34:11.551: Di1: No free dialer - starting fast idle timer
*Jul 10 03:34:11.783: Di1 DDR: No free dialer - starting fast idle timer
*Jul 10 03:34:12.551: Di1: No free dialer - starting fast idle timer
*Jul 10 03:34:12.551: Di1: No free dialer - starting fast idle timer
*Jul 10 03:34:12.551: Di1: No free dialer - starting fast idle timer
*Jul 10 03:34:12.783: Di1 DDR: No free dialer - starting fast idle timer
*Jul 10 03:34:13.551: Di1: No free dialer - starting fast idle timer
*Jul 10 03:34:13.551: Di1: No free dialer - starting fast idle timer
*Jul 10 03:34:13.551: Di1: No free dialer - starting fast idle timer
*Jul 10 03:34:13.551: Di1: No free dialer - starting fast idle timer
*Jul 10 03:34:13.551: Di1: No free dialer - starting fast idle timer
*Jul 10 03:34:13.551: Di1: No free dialer - starting fast idle timer
*Jul 10 03:34:13.551: Di1: No free dialer - starting fast idle timer
*Jul 10 03:34:13.551: Di1: No free dialer - starting fast idle timer
*Jul 10 03:34:13.551: Di1: No free dialer - starting fast idle timer
*Jul 10 03:34:13.783: Di1 DDR: No free dialer - starting fast idle timer
*Jul 10 03:34:14.207: Di1: No free dialer - starting fast idle timer
*Jul 10 03:34:14.211: Di1: No free dialer - starting fast idle timer
*Jul 10 03:34:14.211: Di1: No free dialer - starting fast idle timer
*Jul 10 03:34:14.211: Di1: No free dialer - starting fast idle timer
*Jul 10 03:34:14.779: %LINK-3-UPDOWN: Interface Cellular0/0/0, changed state to down
*Jul 10 03:34:14.783: Di1 DDR: No free dialer - starting fast idle timer
*Jul 10 03:34:15.551: Di1: No free dialer - starting fast idle timer
*Jul 10 03:34:15.551: Di1: No free dialer - starting fast idle timer
*Jul 10 03:34:15.551: Di1: No free dialer - starting fast idle timer
*Jul 10 03:34:15.551: Di1: No free dialer - starting fast idle timer
*Jul 10 03:34:15.551: Di1: No free dialer - starting fast idle timer
*Jul 10 03:34:15.551: Di1: No free dialer - starting fast idle timer
*Jul 10 03:34:15.783: Di1 DDR: No free dialer - starting fast idle timer
*Jul 10 03:34:15.795: Di1: No free dialer - starting fast idle timer
*Jul 10 03:34:15.799: Di1: No free dialer - starting fast idle timer
*Jul 10 03:34:16.783: Di1 DDR: No free dialer - starting fast idle timer
*Jul 10 03:34:16.795: Di1: No free dialer - starting fast idle timer
*Jul 10 03:34:16.799: Di1: No free dialer - starting fast idle timer
*Jul 10 03:34:17.783: Di1 DDR: No free dialer - starting fast idle timer
*Jul 10 03:34:17.795: Di1: No free dialer - starting fast idle timer
*Jul 10 03:34:17.799: Di1: No free dialer - starting fast idle timer
*Jul 10 03:34:18.783: Di1 DDR: No free dialer - starting fast idle timer
*Jul 10 03:34:19.551: Di1: No free dialer - starting fast idle timer
*Jul 10 03:34:19.551: Di1: No free dialer - starting fast idle timer
*Jul 10 03:34:19.551: Di1: No free dialer - starting fast idle timer
*Jul 10 03:34:19.551: Di1: No free dialer - starting fast idle timer
*Jul 10 03:34:19.551: Di1: No free dialer - starting fast idle timer
*Jul 10 03:34:19.551: Di1: No free dialer - starting fast idle timer
*Jul 10 03:34:19.783: Di1 DDR: No free dialer - starting fast idle timer
*Jul 10 03:34:19.795: Di1: No free dialer - starting fast idle timer
*Jul 10 03:34:19.795: Di1: No free dialer - starting fast idle timer
*Jul 10 03:34:19.799: Di1: No free dialer - starting fast idle timer
*Jul 10 03:34:19.799: Di1: No free dialer - starting fast idle timer
*Jul 10 03:34:20.771: Di1: No free dialer - starting fast idle timer
*Jul 10 03:34:20.783: Di1 DDR: No free dialer - starting fast idle timer
*Jul 10 03:34:21.775: Di1: No free dialer - starting fast idle timer
*Jul 10 03:34:21.783: Di1 DDR: No free dialer - starting fast idle timer
*Jul 10 03:34:22.775: Di1: No free dialer - starting fast idle timer
*Jul 10 03:34:22.783: Di1 DDR: No free dialer - starting fast idle timer
*Jul 10 03:34:23.783: Di1 DDR: No free dialer - starting fast idle timer
*Jul 10 03:34:23.795: Di1: No free dialer - starting fast idle timer
*Jul 10 03:34:23.795: Di1: No free dialer - starting fast idle timer
*Jul 10 03:34:23.799: Di1: No free dialer - starting fast idle timer
*Jul 10 03:34:23.799: Di1: No free dialer - starting fast idle timer
*Jul 10 03:34:24.775: Di1: No free dialer - starting fast idle timer
*Jul 10 03:34:24.775: Di1: No free dialer - starting fast idle timer
*Jul 10 03:34:24.779: Ce0/0/0 DDR: re-enable timeout
*Jul 10 03:34:24.783: Ce0/0/0 DDR: rotor dialout [best] least recent failure is also most recent failure
*Jul 10 03:34:24.783: Ce0/0/0 DDR: rotor dialout [best] also has most recent failure
*Jul 10 03:34:24.783: Ce0/0/0 DDR: rotor dialout [best]
*Jul 10 03:34:24.783: Di1 DDR: Nailing up the Dialer profile [attempt 16]
*Jul 10 03:34:24.783: Di1 DDR: Dialer dialing - persistent dialer profile
*Jul 10 03:34:24.783: Ce0/0/0 DDR: Dialing cause Persistent Dialer Profile
*Jul 10 03:34:24.783: Ce0/0/0 DDR: Attempting to dial lte
*Jul 10 03:34:24.783: CHAT0/0/0: Attempting async line dialer script
*Jul 10 03:34:24.783: CHAT0/0/0: Dialing using Modem script: lte & System script: none
*Jul 10 03:34:24.783: CHAT0/0/0: process started
*Jul 10 03:34:24.783: CHAT0/0/0: Asserting DTR
*Jul 10 03:34:24.783: CHAT0/0/0: Chat script lte started
*Jul 10 03:34:24.783: CHAT0/0/0: Sending string: AT!CALL1
*Jul 10 03:34:24.783: CHAT0/0/0: Expecting string: OK
*Jul 10 03:34:25.571: CHAT0/0/0: Completed match for expect: OK
*Jul 10 03:34:25.571: CHAT0/0/0: Chat script lte finished, status = Success
*Jul 10 03:34:26.583: Ce0/0/0 DDR: disconnecting call
*Jul 10 03:34:28.775: Di1: No free dialer - starting fast idle timer
*Jul 10 03:34:28.775: Di1: No free dialer - starting fast idle timer
*Jul 10 03:34:33.999: Di1: No free dialer - starting fast idle timer
*Jul 10 03:34:34.999: Di1: No free dialer - starting fast idle timer
*Jul 10 03:34:37.643: %LINEPROTO-5-UPDOWN: Line protocol on Interface GigabitEthernet0/1, changed state to down
*Jul 10 03:34:38.643: %LINK-3-UPDOWN: Interface GigabitEthernet0/1, changed state to down
*Jul 10 03:34:41.583: Ce0/0/0 DDR: re-enable timeout
*Jul 10 03:34:42.583: Ce0/0/0 DDR: rotor dialout [best] least recent failure is also most recent failure
*Jul 10 03:34:42.583: Ce0/0/0 DDR: rotor dialout [best] also has most recent failure
*Jul 10 03:34:42.583: Ce0/0/0 DDR: rotor dialout [best]
*Jul 10 03:34:42.583: Di1 DDR: Nailing up the Dialer profile [attempt 17]
*Jul 10 03:34:42.583: Di1 DDR: Dialer dialing - persistent dialer profile
*Jul 10 03:34:42.583: Ce0/0/0 DDR: Dialing cause Persistent Dialer Profile
*Jul 10 03:34:42.583: Ce0/0/0 DDR: Attempting to dial lte
*Jul 10 03:34:42.583: CHAT0/0/0: Attempting async line dialer script
*Jul 10 03:34:42.583: CHAT0/0/0: Dialing using Modem script: lte & System script: none
*Jul 10 03:34:42.583: CHAT0/0/0: process started
*Jul 10 03:34:42.583: CHAT0/0/0: Asserting DTR
*Jul 10 03:34:42.583: CHAT0/0/0: Chat script lte started
*Jul 10 03:34:42.583: CHAT0/0/0: Sending string: AT!CALL1
*Jul 10 03:34:42.583: CHAT0/0/0: Expecting string: OK
*Jul 10 03:34:43.671: CHAT0/0/0: Completed match for expect: OK
*Jul 10 03:34:43.671: CHAT0/0/0: Chat script lte finished, status = Success
*Jul 10 03:34:45.671: %LINK-3-UPDOWN: Interface Cellular0/0/0, changed state to up
*Jul 10 03:34:45.671: Ce0/0/0 DDR: Dialer statechange to up
*Jul 10 03:34:45.671: %DIALER-6-BIND: Interface Ce0/0/0 bound to profile Di1
*Jul 10 03:34:45.671: Ce0/0/0 DDR: Dialer call has been placed
*Jul 10 03:34:45.671: Ce0/0/0 DDR: dialer protocol up
*Jul 10 03:34:45.671: Di1 DDR: Persistent Dialer Profile nailed up successfully
*Jul 10 03:34:46.671: %LINEPROTO-5-UPDOWN: Line protocol on Interface Cellular0/0/0, changed state to up
Profile Information
====================
Profile 1 = INACTIVE*
--------
PDP Type = IPv4
Access Point Name (APN) = VZWINTERNET
Authentication = None
Username:
Password:
* - Default profile
arch-eng-router1#ping 4.2.2.1
Type escape sequence to abort.
Sending 5, 100-byte ICMP Echos to 4.2.2.1, timeout is 2 seconds:
.....
Success rate is 0 percent (0/5)
Ultimately... once the Ethernet cable is attached, the Cellular 0/0/0 interface resets, attempts to connect, connects, resets, etc... Once the Ethernet cable is disconnected, the Cellular 0/0/0 interface successfully reconnects.
I am not really sure how to further troubleshoot this and was hoping someone in the community would have some additional thoughts on how to proceed.
Thanks so much for your time!
