Connection to internet suddenly lost :(

I just installed a copy of Ubuntu (6.10 "Edgy Eft") on one of my computers. Everything went smoothly; I was connected to the internet, and could view websites. When I shut down the computer and turned it back on later, my internet connection was suddenly lost. This computer is connected via LAN. How could I fix this problem?

Any help would be greatly appreciated.

Thanks in advance.

 

i dont have the OS installed ATM
but anyway
do this
open up an terminal window
and type
su - <password <enter>
ifconfig
see if you got the ETH0 up
if not
than tpe
ifup eth0
see if thats bring up the interface

it should bring it up

 

What's the output of

Code:

ifconfig

and

Code:

route -nee

?

 

Nope, it says my eth0 is already configured >_>

ifconfig:

Code:

eth0       Link encap:Ethernet HWaddr 00:07:E9:AA:5F:92
           UP BROADCAST MULTICAST  MTU:1500  Metric:1
           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:1000
           RX bytes:0 (0.0 b)  TX bytes:0 (0.0 b)

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:2 errors:0 dropped:0 overruns:0 frame:0
           TX packets:2 errors:0 dropped:0 overruns:0 carrier:0
           collisions:0 txqueuelen:0
           RX bytes:100 (100.0 b)  TX bytes:100 (100.0 b)

route -nee:

Code:

Kernel IP routing table
Destination     Gateway     Genmask     Flags Metric Ref     Use Iface
 MSS   Window irtt

 

eth0 is not configured like it should be.Try reading one of the perfect setup howtos about configuring the network for static IPs.Maybe Your system is set on recieving network settings from DHCP and You don't have one on Your network.

 

Does

Code:

ifconfig eth0 192.168.0.100 up

work? (Replace the IP address if necessary.)
Any error messages when you run this command? What's the output of

Code:

ifconfig

afterwards?