LinuxQuestions.org
Review your favorite Linux distribution.
Go Back   LinuxQuestions.org > Forums > Linux Forums > Linux - Newbie
User Name
Password
Linux - Newbie This Linux forum is for members that are new to Linux.
Just starting out and have a question? If it is not in the man pages or the how-to's this is the place!

Notices


Reply
  Search this Thread
Old 03-07-2006, 02:50 PM   #1
Mark_in_Hollywood
Member
 
Registered: Jan 2006
Location: USA
Distribution: Ubuntu - Precise Pangolin
Posts: 121

Rep: Reputation: 15
Dialup Modem disconnects itself


The previously discussed prblem is back. I have posted about this problem before. I have tried to resovle it in a number of ways, removing and reinstalling the network through Gnome's Internet Connection Wizard. And editing the settings in "Network Device Control". I'm running Fedora Core 4 (2.6.11-1.1369_FC4). Sometimes changing settings causes Fedora to issue an error message at boot saying that the /etc/hosts file needs editing. When this happens, the hosts file is found to be missing the following line:

127.0.0.1 localhost.localdomain localhost

My ISP, Los Angeles Free Net (knows as LAFN in the .conf files below), is a non-profit linux friendly provider. There is no call waiting or bad phone line service here. The home phone is the computer's line as well. The phone runs 24/7/365 for the last 15 years or so.

I have a Lucent controller based modem, shown as Linux compatable, in the HCL at LinuxQuestions.org. The windos side of this computer has no problem staying connected /online.

Sometimes the Gnome "Network Device Control" can re-initialize the modem, after it is up and running and other times it can't.

After the "Network Device Control" calls the "System-Network-Config", I sometimes receive the following:

Cannot activate network device LAFN

and

Failed to activate LAFN with error 8

both in: "System-Network-Config"

Is error 8 fixable? Where do I find info about it?

More often than not, the modem gets me on the 'net for an irregularly occuring length of time. Some sessions last a few minutes, othes last 20 to 30 minutes before automatically disconnecting me.

Here are the settings for the modem configuration as displayed in/on Gnome "Network Device Control" after clicking on the Configure... button:

TAB
Devices Status Device Nickname Type
Box is checked inactive ppp0 LAFN Modem

TAB
Hardware
Generic Modem /dev/ttyS14 Baud 115,200 Flow Control is Hardware

TAB
IPsec blank

TAB
Hosts blank

From the "Modem Dialup Configuration" (double click on "Network-Config-Devices")

TAB
General
Box checked: allow all users to enable this device
Circle selected Automatically obtain an IP address
Box checked: auto obtain the DNS

TAB
Provider
Phone #
Prefix Area Code Phone Number
blank blank 550-2021
Loginin Name : is correct
Password: is also correct

TAB
Advanced
Hangup 900
Dial Mode set to Manual
Box checked: PPP authenticates
Box checked: Restart
Box checked: Default Route
Modem Init: ATZ
Modem Port: Modem0

TAB
Route
blank

TAB
Compression
nothing checked

TAB
Options
blank

Last edited by Mark_in_Hollywood; 03-07-2006 at 03:07 PM.
 
Old 03-09-2006, 12:25 PM   #2
benrose111488
Member
 
Registered: Jun 2004
Location: Wantage, NJ
Distribution: Fedora 7
Posts: 177

Rep: Reputation: 30
I could be _completely_ wrong, but I think error 8 specifies a general intilization error.

What you should do is look up modem init strings on the internet for your specific modem and pop them in the extra command / init string box of the network config panel.

Try disabling V92 if you have it or decreasing the speed. If you have any compression options enabled, disable them. [edit]Just noticed you said you didn't, so disregard that... just don't add them until you've got a stable connection![/edit] The problem seems to be stability. See if any of these brings you good fortunes.

Last edited by benrose111488; 03-09-2006 at 12:26 PM.
 
Old 03-11-2006, 02:28 AM   #3
Mark_in_Hollywood
Member
 
Registered: Jan 2006
Location: USA
Distribution: Ubuntu - Precise Pangolin
Posts: 121

Original Poster
Rep: Reputation: 15
Please briefly explain what "general" means or I won't know what to look for.

I can't disable a v.92, as this ActionTec PM560LKI modem (Venus chipset) is only v.90.

I have emailed ActionTec for their init strings. Weren't all AT commands based on the Hayes Modems? (I'm getting too old for this)

MEANWHILE: with all the fiddling around with the dial-up adapter, I receive only an Error 8, now. I can no longer get online in Linux. Nothing I repeat NOTHING else has been changed except the modem configuration and /etc/hosts/

Does anybody understand why the file hosts would lose the

127.0.0.1 localhost.localdomain localhost

line, every time the modem has a new phone number to dial, or the Nickname changes? This is more than a little puzzlling.

I issued Shutdown -aF now and on reboot the fsck took very long compared to other times when fsck ran.

Here are the Windos 98SE modem strings:

03-10-2006 23:01:40.44 - 56K V.90 PCI Modem in use.
03-10-2006 23:01:40.44 - Modem type: 56K V.90 PCI Modem
03-10-2006 23:01:40.44 - Modem inf path: ACTION~1.INF
03-10-2006 23:01:40.44 - Modem inf section: Modem_Venus1
03-10-2006 23:01:40.80 - 115200,N,8,1
03-10-2006 23:01:40.80 - 115200,N,8,1
03-10-2006 23:01:40.80 - Initializing modem.
03-10-2006 23:01:40.80 - Send: AT<cr>
03-10-2006 23:01:40.80 - Recv: AT<cr>
03-10-2006 23:01:40.80 - Recv: <cr><lf>OK<cr><lf>
03-10-2006 23:01:40.80 - Interpreted response: Ok
03-10-2006 23:01:40.80 - Send: AT &F E0 &C1 &D2 V1 S0=0\V1<cr>
03-10-2006 23:01:40.85 - Recv: AT &F E0 &C1 &D2 V1 S0=0\V1<cr>
03-10-2006 23:01:40.85 - Recv: <cr><lf>OK<cr><lf>
03-10-2006 23:01:40.85 - Interpreted response: Ok
03-10-2006 23:01:40.85 - Send: ATS7=60S30=0L0M1\N3%C1&K3B1B16N1X4<cr>
03-10-2006 23:01:40.85 - Recv: <cr><lf>OK<cr><lf>
03-10-2006 23:01:40.85 - Interpreted response: Ok
03-10-2006 23:01:40.85 - Dialing.
03-10-2006 23:01:40.85 - Send: ATDT;<cr>
03-10-2006 23:01:43.79 - Recv: <cr><lf>OK<cr><lf>
03-10-2006 23:01:43.79 - Interpreted response: Ok

I sure wish I could get some more eyes on this.
 
  


Reply


Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is Off
HTML code is Off



Similar Threads
Thread Thread Starter Forum Replies Last Post
modem randomly disconnects samweis2111 Linux - Networking 3 02-07-2006 01:39 AM
dialup disconnects randomly, suse9.1 trave113rman SUSE / openSUSE 0 12-18-2004 10:37 PM
Modem disconnects synapse Linux - Newbie 3 01-08-2004 02:45 PM
Modem Frequently disconnects prompt Linux - Hardware 7 12-01-2003 01:34 AM
Route dialup modem packets back through dialup instead of default route cable modem jogress Linux - Networking 1 10-21-2003 03:48 PM


All times are GMT -5. The time now is 04:17 PM.

Main Menu
Advertisement
My LQ
Write for LQ
LinuxQuestions.org is looking for people interested in writing Editorials, Articles, Reviews, and more. If you'd like to contribute content, let us know.
Main Menu
Syndicate
RSS1  Latest Threads
RSS1  LQ News
Twitter: @linuxquestions
Facebook: linuxquestions Google+: linuxquestions
Open Source Consulting | Domain Registration