At the advice of the group here, I installed a VZW UML290 usb modem
about a week and a half ago. This has worked pretty well as a backup
line since then.

Starting yesterday, PPP won't negotiate anymore. The logs show the
authentication succeeds, but then the negotiation fails many times.

Resetting and power-cycling the modem using usbconfig utility did not
help. (I am remote, so physically unplugging it is not possible right
now).

I can type "AT" commands to the modem directly.

Anyone else having negotiation troubles on verizon wireless data
modems? The account is in good standing according to their web portal.


Here are the logs produced (phone number redacted). The difference
between this and a successful connection is that the lines where it
reports refusal of VJCOMP.  On successful attempt it looks like this:

Apr 10 09:06:14 onceler ppp: [opt2] IPCP: state change Req-Sent --> Ack-Sent
Apr 10 09:06:14 onceler ppp: [opt2] IPCP: rec'd Configure Reject #1 (Ack-Sent)
Apr 10 09:06:14 onceler ppp: [opt2]   COMPPROTO VJCOMP, 16 comp.
channels, no comp-cid
Apr 10 09:06:14 onceler ppp: [opt2] IPCP: SendConfigReq #2
Apr 10 09:06:14 onceler ppp: [opt2]   IPADDR 0.0.0.0
Apr 10 09:06:14 onceler ppp: [opt2] IPCP: rec'd Configure Nak #2 (Ack-Sent)
Apr 10 09:06:14 onceler ppp: [opt2]   IPADDR 10.185.224.29
Apr 10 09:06:14 onceler ppp: [opt2]     10.185.224.29 is OK
Apr 10 09:06:14 onceler ppp: [opt2] IPCP: SendConfigReq #3
Apr 10 09:06:14 onceler ppp: [opt2]   IPADDR 10.185.224.29
Apr 10 09:06:14 onceler ppp: [opt2] IPCP: rec'd Configure Ack #3 (Ack-Sent)
Apr 10 09:06:14 onceler ppp: [opt2]   IPADDR 10.185.224.29
Apr 10 09:06:14 onceler ppp: [opt2] IPCP: state change Ack-Sent --> Opened
Apr 10 09:06:14 onceler ppp: [opt2] IPCP: LayerUp
Apr 10 09:06:14 onceler ppp: [opt2]   10.185.224.29 -> 10.64.64.0
Apr 10 09:06:14 onceler ppp: [opt2] IFACE: Up event
Apr 10 09:06:14 onceler ppp: [opt2] IFACE: Rename interface ng0 to ppp0

but unsuccessful attempt repeated the COMPPROTO VJCOMP several times
and gives up:

Apr 17 11:53:38 onceler ppp: Multi-link PPP daemon for FreeBSD
Apr 17 11:53:38 onceler ppp:
Apr 17 11:53:38 onceler ppp: process 8572 started, version 5.6
(root@snapshots-8_3-i386.builders.pfsense.org 10:16 24-Jul-2013)
Apr 17 11:53:38 onceler ppp: caught fatal signal term
Apr 17 11:53:38 onceler ppp: [opt2] IFACE: Close event
Apr 17 11:53:38 onceler ppp: [opt2] IPCP: Close event
Apr 17 11:53:38 onceler ppp: [opt2] IPV6CP: Close event
Apr 17 11:53:38 onceler ppp: waiting for process 53242 to die...
Apr 17 11:53:38 onceler php: /interfaces_ppps_edit.php: Starting
3gstats.php on device '' for interface 'opt2'
Apr 17 11:53:39 onceler ppp: waiting for process 53242 to die...
Apr 17 11:53:40 onceler ppp: [opt2] Bundle: Shutdown
Apr 17 11:53:40 onceler ppp: [opt2_link0] Link: Shutdown
Apr 17 11:53:40 onceler ppp: process 53242 terminated
Apr 17 11:53:40 onceler ppp: web: web is not running
Apr 17 11:53:40 onceler ppp: [opt2] Bundle: Interface ng0 created
Apr 17 11:53:40 onceler ppp: [opt2_link0] Link: OPEN event
Apr 17 11:53:40 onceler kernel: ng0: changing name to 'ppp0'
Apr 17 11:53:40 onceler ppp: [opt2_link0] LCP: Open event
Apr 17 11:53:40 onceler ppp: [opt2_link0] LCP: state change Initial --> Starting
Apr 17 11:53:40 onceler ppp: [opt2_link0] LCP: LayerStart
Apr 17 11:53:40 onceler ppp: [opt2_link0] CHAT: Detected Hayes compatible modem.
Apr 17 11:53:40 onceler ppp: [opt2_link0] CHAT: Dialing server at *99***3#...
Apr 17 11:53:40 onceler ppp: [opt2_link0] CHAT: ATDT*99***3#
Apr 17 11:53:40 onceler ppp: [opt2_link0] CHAT: Connected at 100000000.
Apr 17 11:53:40 onceler ppp: [opt2_link0] MODEM: chat script succeeded
Apr 17 11:53:40 onceler ppp: [opt2_link0] Link: UP event
Apr 17 11:53:40 onceler ppp: [opt2_link0] LCP: Up event
Apr 17 11:53:40 onceler ppp: [opt2_link0] LCP: state change Starting
--> Req-Sent
Apr 17 11:53:40 onceler ppp: [opt2_link0] LCP: SendConfigReq #1
Apr 17 11:53:40 onceler ppp: [opt2_link0]   ACFCOMP
Apr 17 11:53:40 onceler ppp: [opt2_link0]   PROTOCOMP
Apr 17 11:53:40 onceler ppp: [opt2_link0]   ACCMAP 0x000a0000
Apr 17 11:53:40 onceler ppp: [opt2_link0]   MRU 1500
Apr 17 11:53:40 onceler ppp: [opt2_link0]   MAGICNUM 7b339fe0
Apr 17 11:53:40 onceler ppp: [opt2_link0] LCP: rec'd Configure Request
#25 (Req-Sent)
Apr 17 11:53:40 onceler ppp: [opt2_link0]   ACCMAP 0x00000000
Apr 17 11:53:40 onceler ppp: [opt2_link0]   AUTHPROTO CHAP MD5
Apr 17 11:53:40 onceler ppp: [opt2_link0]   MAGICNUM e2e4d43f
Apr 17 11:53:40 onceler ppp: [opt2_link0]   PROTOCOMP
Apr 17 11:53:40 onceler ppp: [opt2_link0]   ACFCOMP
Apr 17 11:53:40 onceler ppp: [opt2_link0] LCP: SendConfigAck #25
Apr 17 11:53:40 onceler ppp: [opt2_link0]   ACCMAP 0x00000000
Apr 17 11:53:40 onceler ppp: [opt2_link0]   AUTHPROTO CHAP MD5
Apr 17 11:53:40 onceler ppp: [opt2_link0]   MAGICNUM e2e4d43f
Apr 17 11:53:40 onceler ppp: [opt2_link0]   PROTOCOMP
Apr 17 11:53:40 onceler ppp: [opt2_link0]   ACFCOMP
Apr 17 11:53:40 onceler ppp: [opt2_link0] LCP: state change Req-Sent
--> Ack-Sent
Apr 17 11:53:40 onceler ppp: [opt2_link0] LCP: rec'd Configure Ack #1 (Ack-Sent)
Apr 17 11:53:40 onceler ppp: [opt2_link0]   ACFCOMP
Apr 17 11:53:40 onceler ppp: [opt2_link0]   PROTOCOMP
Apr 17 11:53:40 onceler ppp: [opt2_link0]   ACCMAP 0x000a0000
Apr 17 11:53:40 onceler ppp: [opt2_link0]   MRU 1500
Apr 17 11:53:40 onceler ppp: [opt2_link0]   MAGICNUM 7b339fe0
Apr 17 11:53:40 onceler ppp: [opt2_link0] LCP: state change Ack-Sent --> Opened
Apr 17 11:53:40 onceler ppp: [opt2_link0] LCP: auth: peer wants CHAP,
I want nothing
Apr 17 11:53:40 onceler ppp: [opt2_link0] LCP: LayerUp
Apr 17 11:53:40 onceler ppp: [opt2_link0] LCP: rec'd Discard Request
#26 (Opened)
Apr 17 11:53:40 onceler ppp: [opt2_link0] CHAP: rec'd CHALLENGE #1 len: 35
Apr 17 11:53:40 onceler ppp: [opt2_link0]   Name: "UMTS_CHAP_SRVR"
Apr 17 11:53:40 onceler ppp: [opt2_link0] CHAP: Using authname
"[email protected]"
Apr 17 11:53:40 onceler ppp: [opt2_link0] CHAP: sending RESPONSE #1 len: 41
Apr 17 11:53:40 onceler ppp: [opt2_link0] CHAP: rec'd SUCCESS #1 len: 4
Apr 17 11:53:40 onceler ppp: [opt2_link0] LCP: authorization successful
Apr 17 11:53:40 onceler ppp: [opt2_link0] Link: Matched action 'bundle
"opt2" ""'
Apr 17 11:53:40 onceler ppp: [opt2_link0] Link: Join bundle "opt2"
Apr 17 11:53:40 onceler ppp: [opt2] Bundle: Status update: up 1 link,
total bandwidth 100000000 bps
Apr 17 11:53:40 onceler ppp: [opt2] IPCP: Open event
Apr 17 11:53:40 onceler ppp: [opt2] IPCP: state change Initial --> Starting
Apr 17 11:53:40 onceler ppp: [opt2] IPCP: LayerStart
Apr 17 11:53:40 onceler ppp: [opt2] IPV6CP: Open event
Apr 17 11:53:40 onceler ppp: [opt2] IPV6CP: state change Initial --> Starting
Apr 17 11:53:40 onceler ppp: [opt2] IPV6CP: LayerStart
Apr 17 11:53:40 onceler ppp: [opt2] IPCP: Up event
Apr 17 11:53:40 onceler ppp: [opt2] IPCP: state change Starting --> Req-Sent
Apr 17 11:53:40 onceler ppp: [opt2] IPCP: SendConfigReq #1
Apr 17 11:53:40 onceler ppp: [opt2]   IPADDR 0.0.0.0
Apr 17 11:53:40 onceler ppp: [opt2]   COMPPROTO VJCOMP, 16 comp.
channels, no comp-cid
Apr 17 11:53:40 onceler ppp: [opt2] IPV6CP: Up event
Apr 17 11:53:40 onceler ppp: [opt2] IPV6CP: state change Starting --> Req-Sent
Apr 17 11:53:40 onceler ppp: [opt2] IPV6CP: SendConfigReq #1
Apr 17 11:53:41 onceler ppp: [opt2] IPCP: rec'd Configure Nak #1 (Req-Sent)
Apr 17 11:53:41 onceler ppp: [opt2] IPCP: SendConfigReq #2
Apr 17 11:53:41 onceler ppp: [opt2]   IPADDR 0.0.0.0
Apr 17 11:53:41 onceler ppp: [opt2]   COMPPROTO VJCOMP, 16 comp.
channels, no comp-cid
Apr 17 11:53:42 onceler ppp: [opt2] IPV6CP: SendConfigReq #2
Apr 17 11:53:42 onceler ppp: [opt2] IPCP: rec'd Configure Nak #2 (Req-Sent)
Apr 17 11:53:42 onceler ppp: [opt2] IPCP: SendConfigReq #3
Apr 17 11:53:42 onceler ppp: [opt2]   IPADDR 0.0.0.0
Apr 17 11:53:42 onceler ppp: [opt2]   COMPPROTO VJCOMP, 16 comp.
channels, no comp-cid
Apr 17 11:53:43 onceler ppp: [opt2] IPCP: rec'd Configure Nak #3 (Req-Sent)
Apr 17 11:53:43 onceler ppp: [opt2] IPCP: SendConfigReq #4
Apr 17 11:53:43 onceler ppp: [opt2]   IPADDR 0.0.0.0
Apr 17 11:53:43 onceler ppp: [opt2]   COMPPROTO VJCOMP, 16 comp.
channels, no comp-cid
Apr 17 11:53:44 onceler ppp: [opt2] IPV6CP: SendConfigReq #3
Apr 17 11:53:44 onceler ppp: [opt2] IPCP: rec'd Configure Nak #4 (Req-Sent)
Apr 17 11:53:44 onceler ppp: [opt2] IPCP: SendConfigReq #5
Apr 17 11:53:44 onceler ppp: [opt2]   IPADDR 0.0.0.0
Apr 17 11:53:44 onceler ppp: [opt2]   COMPPROTO VJCOMP, 16 comp.
channels, no comp-cid
Apr 17 11:53:45 onceler ppp: [opt2] IPCP: rec'd Configure Nak #5 (Req-Sent)
Apr 17 11:53:45 onceler ppp: [opt2] IPCP: SendConfigReq #6
Apr 17 11:53:45 onceler ppp: [opt2]   IPADDR 0.0.0.0
Apr 17 11:53:45 onceler ppp: [opt2]   COMPPROTO VJCOMP, 16 comp.
channels, no comp-cid
Apr 17 11:53:46 onceler ppp: [opt2] IPV6CP: SendConfigReq #4
Apr 17 11:53:46 onceler ppp: [opt2] IPCP: rec'd Configure Nak #6 (Req-Sent)
Apr 17 11:53:46 onceler ppp: [opt2] IPCP: SendConfigReq #7
Apr 17 11:53:46 onceler ppp: [opt2]   IPADDR 0.0.0.0
Apr 17 11:53:46 onceler ppp: [opt2]   COMPPROTO VJCOMP, 16 comp.
channels, no comp-cid
Apr 17 11:53:47 onceler ppp: [opt2] IPCP: rec'd Configure Nak #7 (Req-Sent)
Apr 17 11:53:47 onceler ppp: [opt2] IPCP: SendConfigReq #8
Apr 17 11:53:47 onceler ppp: [opt2]   IPADDR 0.0.0.0
Apr 17 11:53:47 onceler ppp: [opt2]   COMPPROTO VJCOMP, 16 comp.
channels, no comp-cid
Apr 17 11:53:48 onceler ppp: [opt2] IPV6CP: SendConfigReq #5
Apr 17 11:53:48 onceler ppp: [opt2] IPCP: rec'd Configure Nak #8 (Req-Sent)
Apr 17 11:53:48 onceler ppp: [opt2] IPCP: SendConfigReq #9
Apr 17 11:53:48 onceler ppp: [opt2]   IPADDR 0.0.0.0
Apr 17 11:53:48 onceler ppp: [opt2]   COMPPROTO VJCOMP, 16 comp.
channels, no comp-cid
Apr 17 11:53:49 onceler ppp: [opt2] IPCP: rec'd Configure Nak #9 (Req-Sent)
Apr 17 11:53:49 onceler ppp: [opt2] IPCP: SendConfigReq #10
Apr 17 11:53:49 onceler ppp: [opt2]   IPADDR 0.0.0.0
Apr 17 11:53:49 onceler ppp: [opt2]   COMPPROTO VJCOMP, 16 comp.
channels, no comp-cid
Apr 17 11:53:50 onceler ppp: [opt2] IPV6CP: SendConfigReq #6
Apr 17 11:53:50 onceler ppp: [opt2] IPCP: rec'd Configure Nak #10 (Req-Sent)
Apr 17 11:53:50 onceler ppp: [opt2] IPCP: not converging
Apr 17 11:53:50 onceler ppp: [opt2] IPCP: parameter negotiation failed
Apr 17 11:53:50 onceler ppp: [opt2] IPCP: state change Req-Sent --> Stopped
Apr 17 11:53:50 onceler ppp: [opt2] IPCP: LayerFinish
Apr 17 11:53:52 onceler ppp: [opt2] IPV6CP: SendConfigReq #7
Apr 17 11:53:54 onceler ppp: [opt2] IPV6CP: SendConfigReq #8
Apr 17 11:53:56 onceler ppp: [opt2] IPV6CP: SendConfigReq #9
Apr 17 11:53:58 onceler ppp: [opt2] IPV6CP: SendConfigReq #10
Apr 17 11:54:00 onceler ppp: [opt2] IPV6CP: parameter negotiation failed
Apr 17 11:54:00 onceler ppp: [opt2] IPV6CP: state change Req-Sent --> Stopped
Apr 17 11:54:00 onceler ppp: [opt2] IPV6CP: LayerFinish
Apr 17 11:54:00 onceler ppp: [opt2] Bundle: No NCPs left. Closing links...
Apr 17 11:54:00 onceler ppp: [opt2] Bundle: closing link "opt2_link0"...
Apr 17 11:54:00 onceler ppp: [opt2_link0] Link: CLOSE event
Apr 17 11:54:00 onceler ppp: [opt2_link0] LCP: Close event
Apr 17 11:54:00 onceler ppp: [opt2_link0] LCP: state change Opened --> Closing
Apr 17 11:54:00 onceler ppp: [opt2_link0] Link: Leave bundle "opt2"
Apr 17 11:54:00 onceler ppp: [opt2] Bundle: Status update: up 0 links,
total bandwidth 9600 bps
Apr 17 11:54:00 onceler ppp: [opt2] IPCP: Close event
Apr 17 11:54:00 onceler ppp: [opt2] IPCP: state change Stopped --> Closed
Apr 17 11:54:00 onceler ppp: [opt2] IPV6CP: Close event
Apr 17 11:54:00 onceler ppp: [opt2] IPV6CP: state change Stopped --> Closed
Apr 17 11:54:00 onceler ppp: [opt2] IPCP: Down event
Apr 17 11:54:00 onceler ppp: [opt2] IPCP: state change Closed --> Initial
Apr 17 11:54:00 onceler ppp: [opt2] IPV6CP: Down event
Apr 17 11:54:00 onceler ppp: [opt2] IPV6CP: state change Closed --> Initial
Apr 17 11:54:00 onceler ppp: [opt2_link0] LCP: SendTerminateReq #2
Apr 17 11:54:00 onceler ppp: [opt2_link0] LCP: LayerDown
Apr 17 11:54:00 onceler ppp: [opt2_link0] LCP: rec'd Terminate Ack #2 (Closing)
Apr 17 11:54:00 onceler ppp: [opt2_link0] LCP: state change Closing --> Closed
Apr 17 11:54:00 onceler ppp: [opt2_link0] LCP: LayerFinish
Apr 17 11:54:00 onceler ppp: [opt2_link0] Link: DOWN event
Apr 17 11:54:00 onceler ppp: [opt2_link0] LCP: Down event
Apr 17 11:54:00 onceler ppp: [opt2_link0] LCP: state change Closed --> Initial
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