LinuxQuestions.org
Latest LQ Deal: Latest LQ Deals
Go Back   LinuxQuestions.org > Forums > Linux Forums > Linux - Hardware
User Name
Password
Linux - Hardware This forum is for Hardware issues.
Having trouble installing a piece of hardware? Want to know if that peripheral is compatible with Linux?

Notices


Reply
  Search this Thread
Old 10-24-2003, 05:25 PM   #1
prompt
Member
 
Registered: Oct 2003
Location: Ireland
Distribution: Mandrake 9.2
Posts: 32

Rep: Reputation: 15
Modem Frequently disconnects


Hi all,
I have a problem where my modem frequently disconnects and the below message
is displayed in /var/log/messages just before it disconnects.

Oct 24 21:18:42 localhost pppd[1810]: primary DNS address 194.145.128.1
Oct 24 21:18:42 localhost pppd[1810]: secondary DNS address 194.125.2.206
Oct 24 21:20:29 localhost gconfd (root-1785): GConf server is not in use, shutting down.
Oct 24 21:20:29 localhost gconfd (root-1785): Exiting
Oct 24 21:44:43 localhost kernel: parport0: PC-style at 0x378 (0x778) [PCSPP,TRISTATE]
Oct 24 21:44:43 localhost kernel: parport0: irq 7 detected
Oct 24 21:45:11 localhost kernel: parport0: PC-style at 0x378 (0x778) [PCSPP,TRISTATE]
Oct 24 21:45:11 localhost kernel: parport0: irq 7 detected
Oct 24 21:45:44 localhost kernel: parport0: PC-style at 0x378 (0x778) [PCSPP,TRISTATE]
Oct 24 21:45:44 localhost kernel: parport0: irq 7 detected

I use kppp to dial out and both kppp and pppd are still running ok after the
disconnection so i dont think it has anyhing to do with them plus my modem
uses irq11 so i dont know if the irq message above has anything to do with it either.
Any Suggestions?
Cheers.
 
Old 10-24-2003, 06:29 PM   #2
Pcghost
Senior Member
 
Registered: Feb 2003
Location: The Real Washington
Distribution: Debian, Android
Posts: 1,819

Rep: Reputation: 46
Check for call waiting or other features on the line that may be interfering, and also check kppp for the disconnect on idle setting. It's a start.
 
Old 10-24-2003, 06:46 PM   #3
prompt
Member
 
Registered: Oct 2003
Location: Ireland
Distribution: Mandrake 9.2
Posts: 32

Original Poster
Rep: Reputation: 15
Thanks for replying.
Checked the things suggested but unfortunately still no luck.
 
Old 10-25-2003, 03:11 PM   #4
coalquay404
LQ Newbie
 
Registered: Oct 2003
Distribution: SuSE
Posts: 22

Rep: Reputation: 15
Your secondary DNS is incorrect. Use the following

Primary: 194.145.128.1
Secondary: 194.145.128.2
 
Old 10-25-2003, 09:47 PM   #5
prompt
Member
 
Registered: Oct 2003
Location: Ireland
Distribution: Mandrake 9.2
Posts: 32

Original Poster
Rep: Reputation: 15
still not working.had those dns entries.
 
Old 11-30-2003, 07:25 PM   #6
meldroc
Member
 
Registered: Aug 2003
Posts: 102

Rep: Reputation: 15
I'm getting that sort of thing too. In my situation, yes I did verify my DNS is correct (why would that disconnect my modem?) and I know that my phone line does not have call waiting. The funny thing with me is that my modem disconnects happen much more frequently when I'm downloading USENET articles.

Jesus Christ, I hate modems. WHY can't the manufacturers come up with a modem that can keep a signal going when the phone line hiccups? It never fails to thoroughly piss me off.
 
Old 11-30-2003, 09:10 PM   #7
meldroc
Member
 
Registered: Aug 2003
Posts: 102

Rep: Reputation: 15
Re: Modem Frequently disconnects

Quote:
Originally posted by prompt
Hi all,
I have a problem where my modem frequently disconnects and the below message
is displayed in /var/log/messages just before it disconnects.

Oct 24 21:18:42 localhost pppd[1810]: primary DNS address 194.145.128.1
Oct 24 21:18:42 localhost pppd[1810]: secondary DNS address 194.125.2.206
Oct 24 21:20:29 localhost gconfd (root-1785): GConf server is not in use, shutting down.
Oct 24 21:20:29 localhost gconfd (root-1785): Exiting
Oct 24 21:44:43 localhost kernel: parport0: PC-style at 0x378 (0x778) [PCSPP,TRISTATE]
Oct 24 21:44:43 localhost kernel: parport0: irq 7 detected
Oct 24 21:45:11 localhost kernel: parport0: PC-style at 0x378 (0x778) [PCSPP,TRISTATE]
Oct 24 21:45:11 localhost kernel: parport0: irq 7 detected
Oct 24 21:45:44 localhost kernel: parport0: PC-style at 0x378 (0x778) [PCSPP,TRISTATE]
Oct 24 21:45:44 localhost kernel: parport0: irq 7 detected

Cheers.
Here's an idea. I'm noticing that your parallel port is in SPP mode (old, compatibility mode), which means the computer has to constantly babysit the parallel port, because there are no interrupts or DMA to take the load off. If the computer is spending a lot of CPU time busy-waiting on the parallel port, it may miss signals coming in from the serial port, which might cause a disconnect. If you can reconfigure your parallel port to EPP or ECP mode, that might help you (in any case, it'll make your parallel port faster.)
 
Old 12-01-2003, 02:34 AM   #8
meldroc
Member
 
Registered: Aug 2003
Posts: 102

Rep: Reputation: 15
I just looked up some command codes for my modem and used one to cap the max speed at 48,000 bps, which should reduce retrains and make connections more reliable. So far, the modem's actually behaving itself.
 
  


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
Firefox Crashing Frequently flamesrock Linux - Software 2 11-21-2004 07:31 PM
Modem disconnects synapse Linux - Newbie 3 01-08-2004 03:45 PM
Cable-modem and d-link - disconnects Punkduplo Linux - Networking 0 01-01-2004 06:43 PM
modem hangs up frequently newbix Linux - Newbie 3 12-08-2003 06:34 PM
connections drop frequently carmeng Linux - General 1 12-12-2001 06:28 PM

LinuxQuestions.org > Forums > Linux Forums > Linux - Hardware

All times are GMT -5. The time now is 12:16 AM.

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
Open Source Consulting | Domain Registration