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Offline jcpolo

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LTE configuration for MC7700 AT&T
« on: August 30, 2016, 01:09:28 pm »
I've been messing with this for almost a month now and I've had no luck getting this to work. The guides and forum posts I've read indicate I'm doing this correctly but I get nothing but errors.


Time   Process   PID   Message
Aug 30 18:02:39   ppp      [opt1_link0] Link: reconnection attempt 3 in 4 seconds
Aug 30 18:02:39   ppp      [opt1_link0] LCP: Down event
Aug 30 18:02:39   ppp      [opt1_link0] Link: DOWN event
Aug 30 18:02:39   ppp      [opt1_link0] MODEM: chat script failed
Aug 30 18:02:39   ppp      [opt1_link0] CHAT: Invalid dial init string.
Aug 30 18:02:39   ppp      [opt1_link0] CHAT: ATDT*99#
Aug 30 18:02:39   ppp      [opt1_link0] CHAT: Dialing server at *99#...
Aug 30 18:02:39   ppp      [opt1_link0] CHAT: Detected Hayes compatible modem.
Aug 30 18:02:39   ppp      [opt1_link0] CHAT: +CGDCONT=1,"IP","broadband"
Aug 30 18:02:39   ppp      [opt1_link0] Link: reconnection attempt 2
Aug 30 18:02:36   ppp      [opt1_link0] Link: reconnection attempt 2 in 3 seconds
Aug 30 18:02:36   ppp      [opt1_link0] LCP: Down event
Aug 30 18:02:36   ppp      [opt1_link0] Link: DOWN event
Aug 30 18:02:36   ppp      [opt1_link0] MODEM: chat script failed
Aug 30 18:02:36   ppp      [opt1_link0] CHAT: Invalid dial init string.
Aug 30 18:02:36   ppp      [opt1_link0] CHAT: ATDT*99#
Aug 30 18:02:36   ppp      [opt1_link0] CHAT: Dialing server at *99#...
Aug 30 18:02:36   ppp      [opt1_link0] CHAT: Detected Hayes compatible modem.
Aug 30 18:02:35   ppp      [opt1_link0] CHAT: +CGDCONT=1,"IP","broadband"
Aug 30 18:02:33   ppp      [opt1_link0] Link: reconnection attempt 1

I've got my config file posted here from the CLI because the gui doesn't show much.

[2.3.2-RELEASE][admin@pfSense.localdomain]/var/etc: more mpd_opt1.conf
startup:
        # configure the console
        set console close
        # configure the web server
        set web close

default:
pppclient:
        create bundle static opt1
        set bundle enable ipv6cp
        set iface name ppp0
        set iface disable on-demand
        set iface idle 0
        set iface enable tcpmssfix
        set iface up-script /usr/local/sbin/ppp-linkup
        set iface down-script /usr/local/sbin/ppp-linkdown
        set ipcp ranges 0.0.0.0/0 10.64.64.0/0
        set ipcp enable req-pri-dns
        set ipcp enable req-sec-dns
        #log -bund -ccp -chat -iface -ipcp -lcp -link

        create link static opt1_link0 modem
        set link action bundle opt1
        set link disable multilink
        set link keep-alive 10 60
        set link max-redial 0
        set link disable chap pap
        set link accept chap pap eap
        set link disable incoming
        set link mtu 1492
        set auth authname "user"
        set auth password <9E><89><DE>
        set modem device /dev/cuaU0.3
        set modem script DialPeer
        set modem idle-script Ringback
        set modem watch -cd
        set modem var $DialPrefix "DT"
        set modem var $Telephone "*99#"
        set modem var $ConnectTimeout "20"
        set modem var $APN "broadband"
        set modem var $APNum "1"
        open

Offline parkmcgraw

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Re: LTE configuration for MC7700 AT&T
« Reply #1 on: September 06, 2016, 12:47:23 pm »
Hello jcpolo

I am not sure if my reply will be helpful, but I noticed that you have in your PPP client config:

set modem var $DialPrefix "DT"
set modem var $Telephone "*99#"

resulting in:

Aug 30 18:02:39   ppp      [opt1_link0] MODEM: chat script failed
Aug 30 18:02:39   ppp      [opt1_link0] CHAT: Invalid dial init string.
Aug 30 18:02:39   ppp      [opt1_link0] CHAT: ATDT*99#

Although a different device, I had a similar problem with my AT&T Unite Pro (Aircard 781S) connecting with an Asus RT-AC68U router and found the problem to be with the dialing string (*99#). Removing the string, leaving the number field blank, enabled the wireless modem.

I would also try and leave the dial tone "DT" blank as well, for the AT&T wireless modem, from my limited understanding, does not actually place a traditional call or make use of a dial tone. In addition, I do not know if the pfSense PPP client will let you leave the two "set modem" lines out of the configuration or if needed to remain, permit the two fields to be blank.

I wish I could get as far as you have with my Unite Pro on pfSense.

Park
 
« Last Edit: September 06, 2016, 01:15:38 pm by parkmcgraw »

Offline nio

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Re: LTE configuration for MC7700 AT&T
« Reply #2 on: February 14, 2017, 02:35:07 pm »
I have the same problem here, the MODEM is DLINK DWM 157, anyone have an idea?

My regards.
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Offline AndrewZ

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Re: LTE configuration for MC7700 AT&T
« Reply #3 on: February 27, 2017, 05:41:49 am »
The issue could be related to Init, not Dial string. Custom init string should be set to ATZ (just Z in the web GUI as I recall).
Please check what I wrote earlier here: https://forum.pfsense.org/index.php?topic=105842.msg589805#msg589805