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Old 02-19-2009, 10:34 AM   #1
Dutch72
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DSL suddenly stops


Hi All,

since a couple of weeks, my DSL connection suddenly stops after a while
(usaully after 1-3 hours)

When I call the connection, it works fine and with good speed, so I guess it is set up okay. Firefox and Transmission work. For a longer download I usually leave the PC on overnight and find it finished in the morning.

However, now I find the download unfinished (transmission reports "stalled") and the DSL connection is terminated. If I click it, it starts up fine with no error message. (Transmission then continues)


The only change to the system I made was installing AWN. Can this cause problems? (I would uninstall to try, but I spent a lot of time customizing, which I would hate to lose)

Can a recent automatic update have caused the problems?

After being inactive a while, the computer powers down the monitor. (Computer is still on, fan running). Is this it?

Would my DSL router reset itself after a while? Can I configure linux to reset the connection when this happens?

I realize this kind of question is very hard to debug (I don't even know which info to provide) but perhaps someone can just point me in the right way to start troubleshooting...

Additional Infos:

New PC (Quad Core, 4GB), no sign of any hardware defects.
Dual Boot Vista and Ubunto 8.10 with Gnome
Internet Provider: Alice Germany DSL

Thanks
Dutch
 
Old 02-19-2009, 10:42 AM   #2
akuthia
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i cant be of much help, but one thing that may help solve the problem, is wether or not the issue happens in just linux, just windows (i'd assume not since you're on a linux board) or both? if its both, its more than likely to be a hardware setting
 
Old 02-19-2009, 11:04 AM   #3
Dutch72
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Quote:
Originally Posted by akuthia View Post
the issue happens in just linux, just windows or both?

AFAIK, its just Linux.

I never had this problem with windows, but I haven't used Windows to go online in a while. (One reason to switch to linux was my concerns about security)

I can't recall always having had this problem in Linux(I switched "for real" about 2 months ago)but maybe I did and just didn't notice. Linux is still all very new....
 
Old 02-19-2009, 11:07 AM   #4
repo
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Any pointers in the log files ?
 
Old 02-19-2009, 11:14 AM   #5
Dutch72
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Quote:
Originally Posted by repo View Post
Any pointers in the log files ?
Can you please tell me how to find / read them, and I will post them.

Thanks
Dutch
 
Old 02-19-2009, 11:25 AM   #6
repo
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take a look in
Quote:
/var/log/syslog
/var/log/messages
for eth0 or wlan0 (depending which networkcard you use)
Also you can take a look at the logs of the router.
 
Old 02-19-2009, 12:36 PM   #7
Dutch72
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Quote:
Originally Posted by repo View Post
take a look in

for eth0 or wlan0 (depending which networkcard you use)
Also you can take a look at the logs of the router.
Alright: from /var/log/messages


Code:
Feb 19 11:45:17 Ubuntu8838 -- MARK --
Feb 19 12:05:17 Ubuntu8838 -- MARK --
Feb 19 12:25:17 Ubuntu8838 -- MARK --
Feb 19 12:45:17 Ubuntu8838 -- MARK --
Feb 19 13:05:17 Ubuntu8838 -- MARK --
Feb 19 13:25:17 Ubuntu8838 -- MARK --
Feb 19 13:45:17 Ubuntu8838 -- MARK --
Feb 19 14:05:17 Ubuntu8838 -- MARK --
Feb 19 14:25:17 Ubuntu8838 -- MARK --
Feb 19 14:45:17 Ubuntu8838 -- MARK --
Feb 19 15:05:17 Ubuntu8838 -- MARK --
Feb 19 15:25:17 Ubuntu8838 -- MARK --
Feb 19 15:45:17 Ubuntu8838 -- MARK --
Feb 19 15:51:46 Ubuntu8838 pppd[19933]: No response to 3 echo-requests
Feb 19 15:51:46 Ubuntu8838 pppd[19933]: Serial link appears to be disconnected.
Feb 19 15:51:46 Ubuntu8838 pppd[19933]: Connect time 518.4 minutes.
Feb 19 15:51:46 Ubuntu8838 pppd[19933]: Sent 2155829529 bytes, received 1276370329 bytes.
Feb 19 15:51:47 Ubuntu8838 pppd[19933]: Connection terminated.
Feb 19 15:51:47 Ubuntu8838 pppd[19933]: Exit.
Feb 19 16:05:17 Ubuntu8838 -- MARK --
Feb 19 16:25:17 Ubuntu8838 -- MARK --
Feb 19 16:45:17 Ubuntu8838 -- MARK --
Feb 19 17:05:17 Ubuntu8838 -- MARK --
Feb 19 17:25:17 Ubuntu8838 -- MARK --
Feb 19 17:45:17 Ubuntu8838 -- MARK --
Does this help?

Dutch
 
Old 02-19-2009, 12:43 PM   #8
repo
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are you using a router?
Seems to me it is a modem
Then there seems to be a problem between the moden and the DSL.
Do you have sync on the modem at the moment of the disconnects?
could be the filter, the cabling between modem and tel line ...
 
Old 02-19-2009, 12:43 PM   #9
Dutch72
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And from Syslog, taken from the same timeframe...


Code:
Feb 19 15:51:26 Ubuntu8838 nullmailer[30259]: smtp: Failed: Connect failed
Feb 19 15:51:26 Ubuntu8838 nullmailer[5493]: Sending failed:  Host not found
Feb 19 15:51:26 Ubuntu8838 nullmailer[5493]: Starting delivery: protocol: smtp host: mail. file: 1234212903.7223
Feb 19 15:51:27 Ubuntu8838 nullmailer[30260]: smtp: Failed: Connect failed
Feb 19 15:51:27 Ubuntu8838 nullmailer[5493]: Sending failed:  Host not found
Feb 19 15:51:27 Ubuntu8838 nullmailer[5493]: Starting delivery: protocol: smtp host: mail. file: 1234106925.7103
Feb 19 15:51:27 Ubuntu8838 nullmailer[30262]: smtp: Failed: Connect failed
Feb 19 15:51:27 Ubuntu8838 nullmailer[5493]: Sending failed:  Host not found
Feb 19 15:51:27 Ubuntu8838 nullmailer[5493]: Starting delivery: protocol: smtp host: mail. file: 1234724978.11469
Feb 19 15:51:27 Ubuntu8838 nullmailer[30263]: smtp: Failed: Connect failed
Feb 19 15:51:27 Ubuntu8838 nullmailer[5493]: Sending failed:  Host not found
Feb 19 15:51:27 Ubuntu8838 nullmailer[5493]: Starting delivery: protocol: smtp host: mail. file: 1234725013.11487
Feb 19 15:51:28 Ubuntu8838 nullmailer[30264]: smtp: Failed: Connect failed
Feb 19 15:51:28 Ubuntu8838 nullmailer[5493]: Sending failed:  Host not found
Feb 19 15:51:28 Ubuntu8838 nullmailer[5493]: Delivery complete, 6 message(s) remain.
Feb 19 15:51:46 Ubuntu8838 pppd[19933]: No response to 3 echo-requests
Feb 19 15:51:46 Ubuntu8838 pppd[19933]: Serial link appears to be disconnected.
Feb 19 15:51:46 Ubuntu8838 NetworkManager: <info>  (eth0): device state change: 8 -> 7 
Feb 19 15:51:46 Ubuntu8838 pppd[19933]: Connect time 518.4 minutes.
Feb 19 15:51:46 Ubuntu8838 pppd[19933]: Sent 2155829529 bytes, received 1276370329 bytes.
Feb 19 15:51:47 Ubuntu8838 NetworkManager: <info>  (eth0): device state change: 7 -> 9 
Feb 19 15:51:47 Ubuntu8838 NetworkManager: <info>  Marking connection 'Alice' invalid. 
Feb 19 15:51:47 Ubuntu8838 NetworkManager: <info>  Activation (eth0) failed. 
Feb 19 15:51:47 Ubuntu8838 NetworkManager: <info>  (eth0): device state change: 9 -> 3 
Feb 19 15:51:47 Ubuntu8838 NetworkManager: <info>  (eth0): deactivating device (reason: 0). 
Feb 19 15:51:47 Ubuntu8838 NetworkManager: <info>  Activation (eth0) starting connection 'Auto eth0' 
Feb 19 15:51:47 Ubuntu8838 NetworkManager: <info>  (eth0): device state change: 3 -> 4 
Feb 19 15:51:47 Ubuntu8838 NetworkManager: <info>  Activation (eth0) Stage 1 of 5 (Device Prepare) scheduled... 
Feb 19 15:51:47 Ubuntu8838 NetworkManager: <info>  Activation (eth0) Stage 1 of 5 (Device Prepare) started... 
Feb 19 15:51:47 Ubuntu8838 NetworkManager: <info>  Activation (eth0) Stage 2 of 5 (Device Configure) scheduled... 
Feb 19 15:51:47 Ubuntu8838 NetworkManager: <info>  Activation (eth0) Stage 1 of 5 (Device Prepare) complete. 
Feb 19 15:51:47 Ubuntu8838 NetworkManager: <info>  Activation (eth0) Stage 2 of 5 (Device Configure) starting... 
Feb 19 15:51:47 Ubuntu8838 NetworkManager: <info>  (eth0): device state change: 4 -> 5 
Feb 19 15:51:47 Ubuntu8838 NetworkManager: <info>  Activation (eth0) Stage 2 of 5 (Device Configure) successful. 
Feb 19 15:51:47 Ubuntu8838 NetworkManager: <info>  Activation (eth0) Stage 3 of 5 (IP Configure Start) scheduled. 
Feb 19 15:51:47 Ubuntu8838 NetworkManager: <info>  Activation (eth0) Stage 2 of 5 (Device Configure) complete. 
Feb 19 15:51:47 Ubuntu8838 NetworkManager: <info>  Activation (eth0) Stage 3 of 5 (IP Configure Start) started... 
Feb 19 15:51:47 Ubuntu8838 NetworkManager: <info>  (eth0): device state change: 5 -> 7 
Feb 19 15:51:47 Ubuntu8838 NetworkManager: <info>  Activation (eth0) Beginning DHCP transaction. 
Feb 19 15:51:47 Ubuntu8838 NetworkManager: <info>  dhclient started with pid 30291 
Feb 19 15:51:47 Ubuntu8838 NetworkManager: <info>  Activation (eth0) Stage 3 of 5 (IP Configure Start) complete. 
Feb 19 15:51:47 Ubuntu8838 pppd[19933]: Connection terminated.
Feb 19 15:51:47 Ubuntu8838 dhclient: Internet Systems Consortium DHCP Client V3.1.1
Feb 19 15:51:47 Ubuntu8838 dhclient: Copyright 2004-2008 Internet Systems Consortium.
Feb 19 15:51:47 Ubuntu8838 dhclient: All rights reserved.
Feb 19 15:51:47 Ubuntu8838 dhclient: For info, please visit http://www.isc.org/sw/dhcp/
Feb 19 15:51:47 Ubuntu8838 dhclient: 
Feb 19 15:51:47 Ubuntu8838 NetworkManager: <info>  DHCP: device eth0 state changed normal exit -> preinit 
Feb 19 15:51:47 Ubuntu8838 pppd[19933]: Exit.
Feb 19 15:51:47 Ubuntu8838 dhclient: Listening on LPF/eth0/00:21:85:c6:e2:f9
Feb 19 15:51:47 Ubuntu8838 dhclient: Sending on   LPF/eth0/00:21:85:c6:e2:f9
Feb 19 15:51:47 Ubuntu8838 dhclient: Sending on   Socket/fallback
Feb 19 15:51:49 Ubuntu8838 NetworkManager: <debug> [1235055109.591186] ensure_killed(): waiting for ppp pid 19933 to exit 
Feb 19 15:51:49 Ubuntu8838 NetworkManager: <debug> [1235055109.591462] ensure_killed(): ppp pid 19933 cleaned up 
Feb 19 15:51:51 Ubuntu8838 dhclient: DHCPDISCOVER on eth0 to 255.255.255.255 port 67 interval 7
Feb 19 15:51:51 Ubuntu8838 dhclient: DHCPOFFER of 192.168.1.68 from 192.168.1.1
Feb 19 15:51:51 Ubuntu8838 dhclient: DHCPREQUEST of 192.168.1.68 on eth0 to 255.255.255.255 port 67
Feb 19 15:51:51 Ubuntu8838 dhclient: DHCPACK of 192.168.1.68 from 192.168.1.1
Feb 19 15:51:51 Ubuntu8838 dhclient: bound to 192.168.1.68 -- renewal in 254796 seconds.
Feb 19 15:51:51 Ubuntu8838 NetworkManager: <info>  DHCP: device eth0 state changed preinit -> bound 
Feb 19 15:51:51 Ubuntu8838 NetworkManager: <info>  Activation (eth0) Stage 4 of 5 (IP Configure Get) scheduled... 
Feb 19 15:51:51 Ubuntu8838 NetworkManager: <info>  Activation (eth0) Stage 4 of 5 (IP Configure Get) started... 
Feb 19 15:51:51 Ubuntu8838 NetworkManager: <info>    address 192.168.1.68 
Feb 19 15:51:51 Ubuntu8838 NetworkManager: <info>    prefix 24 (255.255.255.0) 
Feb 19 15:51:51 Ubuntu8838 NetworkManager: <info>    gateway 192.168.1.1 
Feb 19 15:51:51 Ubuntu8838 NetworkManager: <info>    hostname 'Ubuntu8838' 
Feb 19 15:51:51 Ubuntu8838 NetworkManager: <info>    nameserver '192.168.1.1' 
Feb 19 15:51:51 Ubuntu8838 NetworkManager: <info>    domain name 'localdomain' 
Feb 19 15:51:51 Ubuntu8838 NetworkManager: <info>  Activation (eth0) Stage 5 of 5 (IP Configure Commit) scheduled... 
Feb 19 15:51:51 Ubuntu8838 NetworkManager: <info>  Activation (eth0) Stage 4 of 5 (IP Configure Get) complete. 
Feb 19 15:51:51 Ubuntu8838 NetworkManager: <info>  Activation (eth0) Stage 5 of 5 (IP Configure Commit) started... 
Feb 19 15:51:51 Ubuntu8838 avahi-daemon[5304]: Joining mDNS multicast group on interface eth0.IPv4 with address 192.168.1.68.
Feb 19 15:51:51 Ubuntu8838 avahi-daemon[5304]: New relevant interface eth0.IPv4 for mDNS.
Feb 19 15:51:51 Ubuntu8838 avahi-daemon[5304]: Registering new address record for 192.168.1.68 on eth0.IPv4.
Feb 19 15:51:52 Ubuntu8838 NetworkManager: <info>  (eth0): device state change: 7 -> 8 
Feb 19 15:51:52 Ubuntu8838 NetworkManager: <info>  Policy set 'Auto eth0' (eth0) as default for routing and DNS. 
Feb 19 15:51:52 Ubuntu8838 NetworkManager: <info>  Activation (eth0) successful, device activated. 
Feb 19 15:51:52 Ubuntu8838 NetworkManager: <info>  Activation (eth0) Stage 5 of 5 (IP Configure Commit) complete. 
Feb 19 15:51:52 Ubuntu8838 ntpdate[30353]: can't find host ntp.ubuntu.com 
Feb 19 15:51:52 Ubuntu8838 ntpdate[30353]: no servers can be used, exiting
Feb 19 15:52:28 Ubuntu8838 nullmailer[5493]: Rescanning queue.
Feb 19 15:52:28 Ubuntu8838 nullmailer[5493]: Starting delivery: protocol: smtp host: mail. file: 1233905816.12562
This is the time that transmission reported the last activity...
 
Old 02-19-2009, 02:22 PM   #10
Dutch72
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Quote:
Originally Posted by repo View Post
are you using a router?
Seems to me it is a modem
Then there seems to be a problem between the moden and the DSL.
Do you have sync on the modem at the moment of the disconnects?
could be the filter, the cabling between modem and tel line ...
Yes, it is a DSL Modem, not a router. Sorry about the confusion.

I do not know how to configure the modem. It has no buttons and came without software.

But both Windows and Ubuntu worked straight away, so I never worried about this.

I guess the cabeling is fine, but I can run a test using Vista.

Is there some way I can configure an automatic reconnect?

Last edited by Dutch72; 02-19-2009 at 02:24 PM.
 
Old 02-19-2009, 02:29 PM   #11
repo
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Probably you use raspppoe
If I remember correctly, you can set it in the raspppoe configuration.
you can check in the logfile if it reconnects.
Next time verify if the syncronisation on the modem is OK when the line drops.
Then it is a problem with the line, not linux.
 
Old 02-20-2009, 03:44 AM   #12
Dutch72
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Quote:
Originally Posted by repo View Post
Probably you use raspppoe
If I remember correctly, you can set it in the raspppoe configuration.
you can check in the logfile if it reconnects.
Next time verify if the syncronisation on the modem is OK when the line drops.
Then it is a problem with the line, not linux.
I am starting to think it is the line as well.
It ran fine last night and I didn't change a thing.

Will keep watching it during the next week.
Thanks for your help. I appreciate it!

Dutch
 
  


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