View Full Version : [ubuntu] Lost internet connection 8.10

February 7th, 2009, 05:12 PM
I have a XP machine and a dual boot Vista/Ubuntu machine. Last night I set up a home network between the XP and Vista machine and this morning when I booted into the Ubuntu partition I was no longer able to connect to the internet. I can ping my router and the XP machine, I can also see the shared folders on the xp machine, but I can't ping any beyond the router (meaning that I can't browse using firefox either).

Here's some potentially useful output:

eth0 Link encap:Ethernet HWaddr 00:22:15:10:59:a3
inet addr: Bcast: Mask:
inet6 addr: fe80::222:15ff:fe10:59a3/64 Scope:Link
RX packets:63 errors:0 dropped:0 overruns:0 frame:0
TX packets:78 errors:0 dropped:0 overruns:0 carrier:1
collisions:0 txqueuelen:1000
RX bytes:6386 (6.3 KB) TX bytes:9083 (9.0 KB)

lo Link encap:Local Loopback
inet addr: Mask:
inet6 addr: ::1/128 Scope:Host
RX packets:64 errors:0 dropped:0 overruns:0 frame:0
TX packets:64 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:5152 (5.1 KB) TX bytes:5152 (5.1 KB)

pan0 Link encap:Ethernet HWaddr 02:50:79:31:16:df
RX packets:0 errors:0 dropped:0 overruns:0 frame:0
TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:0 (0.0 B) TX bytes:0 (0.0 B)

# Generated by NetworkManager
domain hsd1.pa.comcast.net.
search hsd1.pa.comcast.net.
nameserver <----- Router ip address

Any suggestions?



Actually I'm seeing a lot of people who have had problems with their wired connection after updating to the -11 kernel. I also updated shortly before having these problems and maybe I'm attributing the problem to the wrong this. Although, most people who are reporting problems seem to be on Acer machines. Mine is on an Asus motherboard. Going back to the -9 kernel doesn't fix the problem, however.

February 7th, 2009, 06:20 PM
do you use pppoeconf?? what is ppp0?

February 7th, 2009, 06:29 PM
Never used pppoeconf before. I thought it was for DSL connections, I have cable internet. Am I missing something?

February 8th, 2009, 06:13 PM
then how did you connect earlier??

February 9th, 2009, 07:22 PM
I simply plugged my ethernet cable into the router. Has worked for the past 4 years that I've had the router......

I did get internet working again, but how I did it doesn't make much sense. I simply unplugged the router and plugged it back in again. Now I would assume this would simply renew my dhcp and ip address for both my ubuntu machine and the xp machine, but why didn't renewing my dhcp from the command line accomplish the same thing? I've since experimented and realized that if I connect ubuntu to the router first, then the xp machine everything is ok. If I connect the xp machine and then ubuntu, I can only access the internet from the xp machine (ubuntu can see the router and the local network, but not the internet). Any ideas as to why this is so?