Disconneted wired connection in Ubuntu live CD 10.10
 

Dear Members,

I thought to give a try to the new Ubuntu 10.10 desktop edition. Everything works smoothly but the internet does not. Infact, it shows 'Wired connection disconnected. you are offline' everytime i try to boot using this cd. The internet works absolutely fine on the windows xp partition. I connect to the internet using a dialer.

after some googling, i tried all available options but none worked. so i am pasting the output of some of the utility commands that may help you guys.


*************ifconfig****************
eth0 Link encap:Ethernet HWaddr 90:e6:ba:b9:9d:5d
inet6 addr: fe80::92e6:baff:feb9:9d5d/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:363 errors:0 dropped:0 overruns:0 frame:0
TX packets:112 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:61961 (61.9 KB) TX bytes:27541 (27.5 KB)
Interrupt:42 Base address:0x6000

lo Link encap:Local Loopback
inet addr:127.0.0.1 Mask:255.0.0.0
inet6 addr: ::1/128 Scope:Host
UP LOOPBACK RUNNING MTU:16436 Metric:1
RX packets:76 errors:0 dropped:0 overruns:0 frame:0
TX packets:76 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:5792 (5.7 KB) TX bytes:5792 (5.7 KB)



********************lshw -C Network*************
*-network
description: Ethernet interface
product: RTL8101E/RTL8102E PCI Express Fast Ethernet controller
vendor: Realtek Semiconductor Co., Ltd.
physical id: 0
bus info: pci@0000:01:00.0
logical name: eth0
version: 01
serial: 90:e6:ba:b9:9d:5d
size: 100MB/s
capacity: 100MB/s
width: 64 bits
clock: 33MHz
capabilities: pm vpd msi pciexpress bus_master cap_list rom ethernet physical tp mii 10bt 10bt-fd 100bt 100bt-fd autonegotiation
configuration: autonegotiation=on broadcast=yes driver=r8169 driverversion=2.3LK-NAPI duplex=full latency=0 link=yes multicast=yes port=MII speed=100MB/s
resources: irq:42 ioport:e800(size=256) memory:febff000-febfffff memory:febc0000-febdffff



************lspci********************
00:00.0 Host bridge: Intel Corporation 82G33/G31/P35/P31 Express DRAM Controller (rev 10)
00:02.0 VGA compatible controller: Intel Corporation 82G33/G31 Express Integrated Graphics Controller (rev 10)
00:1b.0 Audio device: Intel Corporation N10/ICH 7 Family High Definition Audio Controller (rev 01)
00:1c.0 PCI bridge: Intel Corporation N10/ICH 7 Family PCI Express Port 1 (rev 01)
00:1c.1 PCI bridge: Intel Corporation N10/ICH 7 Family PCI Express Port 2 (rev 01)
00:1d.0 USB Controller: Intel Corporation N10/ICH 7 Family USB UHCI Controller #1 (rev 01)
00:1d.1 USB Controller: Intel Corporation N10/ICH 7 Family USB UHCI Controller #2 (rev 01)
00:1d.2 USB Controller: Intel Corporation N10/ICH 7 Family USB UHCI Controller #3 (rev 01)
00:1d.3 USB Controller: Intel Corporation N10/ICH 7 Family USB UHCI Controller #4 (rev 01)
00:1d.7 USB Controller: Intel Corporation N10/ICH 7 Family USB2 EHCI Controller (rev 01)
00:1e.0 PCI bridge: Intel Corporation 82801 PCI Bridge (rev e1)
00:1f.0 ISA bridge: Intel Corporation 82801GB/GR (ICH7 Family) LPC Interface Bridge (rev 01)
00:1f.1 IDE interface: Intel Corporation 82801G (ICH7 Family) IDE Controller (rev 01)
00:1f.2 IDE interface: Intel Corporation N10/ICH7 Family SATA IDE Controller (rev 01)
00:1f.3 SMBus: Intel Corporation N10/ICH 7 Family SMBus Controller (rev 01)
01:00.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL8101E/RTL8102E PCI Express Fast Ethernet controller (rev 01)


**************dhclient*********************
Internet Systems Consortium DHCP Client V3.1.3
Copyright 2004-2009 Internet Systems Consortium.
All rights reserved.
For info, please visit https://www.isc.org/software/dhcp/

Listening on LPF/eth0/90:e6:ba:b9:9d:5d
Sending on LPF/eth0/90:e6:ba:b9:9d:5d
Sending on Socket/fallback
DHCPDISCOVER on eth0 to 255.255.255.255 port 67 interval 3
DHCPDISCOVER on eth0 to 255.255.255.255 port 67 interval 4
DHCPDISCOVER on eth0 to 255.255.255.255 port 67 interval 11
DHCPDISCOVER on eth0 to 255.255.255.255 port 67 interval 10
DHCPDISCOVER on eth0 to 255.255.255.255 port 67 interval 19
DHCPDISCOVER on eth0 to 255.255.255.255 port 67 interval 12
DHCPDISCOVER on eth0 to 255.255.255.255 port 67 interval 2
No DHCPOFFERS received.
No working leases in persistent database - sleeping.


*********/etc/network/interfaces*******
auto lo
iface lo inet loopback


Please help me guys..

thanks,
Vibhor

Have you read this?

DialupModemHowtoSetUpDialer

Configuring the dialup connection to your provider

https://help.ubuntu.com/community/Di...to/SetUpDialer

Yes, i tried the 'pppconfig & pon/poff' approach but the wired connection is disabled. So cannot connect to dialer service :((..

Also i tried using the 'DSL' option in the 'edit network connections' but it also did not work.

The network connection works fine on the windows partition though...

One more thing, I tried Opensuse 11.3 live cd but even using that shows the same result. Hope this may help..is there a problem with the router/switch hardware...suppose the router box is changed, can that also cause the problem??...but i think it will not as internet works fine on windows (same machine)..

Guys please help me..am pasting the contents of the /var/log/daemon.log file when i try to click on 'Auth0'

*********/etc/log/daemon.log**********
Mar 2 10:50:43 ubuntu NetworkManager[4563]: <info> Activation (eth0) starting connection 'Auto eth0'
Mar 2 10:50:43 ubuntu NetworkManager[4563]: <info> (eth0): device state change: 3 -> 4 (reason 0)
Mar 2 10:50:43 ubuntu NetworkManager[4563]: <info> Activation (eth0) Stage 1 of 5 (Device Prepare) scheduled...
Mar 2 10:50:43 ubuntu NetworkManager[4563]: <info> Activation (eth0) Stage 1 of 5 (Device Prepare) started...
Mar 2 10:50:43 ubuntu NetworkManager[4563]: <info> Activation (eth0) Stage 2 of 5 (Device Configure) scheduled...
Mar 2 10:50:43 ubuntu NetworkManager[4563]: <info> Activation (eth0) Stage 1 of 5 (Device Prepare) complete.
Mar 2 10:50:43 ubuntu NetworkManager[4563]: <info> Activation (eth0) Stage 2 of 5 (Device Configure) starting...
Mar 2 10:50:43 ubuntu NetworkManager[4563]: <info> (eth0): device state change: 4 -> 5 (reason 0)
Mar 2 10:50:43 ubuntu NetworkManager[4563]: <info> Activation (eth0) Stage 2 of 5 (Device Configure) successful.
Mar 2 10:50:43 ubuntu NetworkManager[4563]: <info> Activation (eth0) Stage 3 of 5 (IP Configure Start) scheduled.
Mar 2 10:50:43 ubuntu NetworkManager[4563]: <info> Activation (eth0) Stage 2 of 5 (Device Configure) complete.
Mar 2 10:50:43 ubuntu NetworkManager[4563]: <info> Activation (eth0) Stage 3 of 5 (IP Configure Start) started...
Mar 2 10:50:43 ubuntu NetworkManager[4563]: <info> (eth0): device state change: 5 -> 7 (reason 0)
Mar 2 10:50:43 ubuntu NetworkManager[4563]: <info> Activation (eth0) Beginning DHCPv4 transaction (timeout in 45 seconds)
Mar 2 10:50:43 ubuntu NetworkManager[4563]: <info> dhclient started with pid 4793
Mar 2 10:50:43 ubuntu NetworkManager[4563]: <info> Activation (eth0) Stage 3 of 5 (IP Configure Start) complete.
Mar 2 10:50:43 ubuntu dhclient: Internet Systems Consortium DHCP Client V3.1.3
Mar 2 10:50:43 ubuntu dhclient: Copyright 2004-2009 Internet Systems Consortium.
Mar 2 10:50:43 ubuntu dhclient: All rights reserved.
Mar 2 10:50:43 ubuntu dhclient: For info, please visit https://www.isc.org/software/dhcp/
Mar 2 10:50:43 ubuntu dhclient:
Mar 2 10:50:43 ubuntu NetworkManager[4563]: <info> (eth0): DHCPv4 state changed nbi -> preinit
Mar 2 10:50:43 ubuntu dhclient: Listening on LPF/eth0/90:e6:ba:b9:9d:5d
Mar 2 10:50:43 ubuntu dhclient: Sending on LPF/eth0/90:e6:ba:b9:9d:5d
Mar 2 10:50:43 ubuntu dhclient: Sending on Socket/fallback
Mar 2 10:50:43 ubuntu dhclient: DHCPDISCOVER on eth0 to 255.255.255.255 port 67 interval 3
Mar 2 10:50:46 ubuntu dhclient: DHCPDISCOVER on eth0 to 255.255.255.255 port 67 interval 6
Mar 2 10:50:52 ubuntu dhclient: DHCPDISCOVER on eth0 to 255.255.255.255 port 67 interval 12
Mar 2 10:51:04 ubuntu dhclient: DHCPDISCOVER on eth0 to 255.255.255.255 port 67 interval 13
Mar 2 10:51:17 ubuntu dhclient: DHCPDISCOVER on eth0 to 255.255.255.255 port 67 interval 21
Mar 2 10:51:28 ubuntu NetworkManager[4563]: <warn> (eth0): DHCPv4 request timed out.
Mar 2 10:51:28 ubuntu NetworkManager[4563]: <info> (eth0): canceled DHCP transaction, DHCP client pid 4793
Mar 2 10:51:28 ubuntu NetworkManager[4563]: <info> Activation (eth0) Stage 4 of 5 (IP4 Configure Timeout) scheduled...
Mar 2 10:51:28 ubuntu NetworkManager[4563]: <info> Activation (eth0) Stage 4 of 5 (IP4 Configure Timeout) started...
Mar 2 10:51:28 ubuntu NetworkManager[4563]: <info> Activation (eth0) Stage 5 of 5 (IP Configure Commit) scheduled...
Mar 2 10:51:28 ubuntu NetworkManager[4563]: <info> Activation (eth0) Stage 4 of 5 (IP4 Configure Timeout) complete.
Mar 2 10:51:28 ubuntu NetworkManager[4563]: <info> Activation (eth0) Stage 5 of 5 (IP Configure Commit) started...
Mar 2 10:51:28 ubuntu NetworkManager[4563]: <info> Activation (eth0) Stage 5 of 5 (IP Configure Commit) failed (no IP configuration found)
Mar 2 10:51:28 ubuntu NetworkManager[4563]: <info> (eth0): device state change: 7 -> 9 (reason 5)
Mar 2 10:51:28 ubuntu NetworkManager[4563]: <info> Marking connection 'Auto eth0' invalid.
Mar 2 10:51:28 ubuntu NetworkManager[4563]: <warn> Activation (eth0) failed.
Mar 2 10:51:28 ubuntu NetworkManager[4563]: <info> Activation (eth0) Stage 5 of 5 (IP Configure Commit) complete.
Mar 2 10:51:28 ubuntu NetworkManager[4563]: <info> (eth0): device state change: 9 -> 3 (reason 0)
Mar 2 10:51:28 ubuntu NetworkManager[4563]: <info> (eth0): deactivating device (reason: 0).

i really need to get rid of windows..so please help me in setting the ubuntu machine...thanks in advance..

Please post the output of the following command.