No network on 12.04 install

[Dotan Cohen]

I just installed Kubuntu 12.04 on a new computer with an Asus
motherboard containing onboard NIC. The onboard NIC is enabled in
BIOS. I don't happen to have a spare network card to test with. The
internet connection is via a D-Link router, either wired or wireless
via T-Link USB wireless adapter. The internet connection works fine
for other computers on the network (2 wired and 1 wireless). I have
tried multiple known-good cables and router ports with this computer.
I also booting into Kubuntu 11.10 LiveCD to test there as well, same
results.

This machine will not connect to the internet. On the wired connection in 12.04:

shelly at neptune:~$ sudo service networking status
networking stop/waiting
shelly at neptune:~$ sudo service networking restart
stop: Unknown instance:
networking stop/waiting
shelly at neptune:~$ ping google.com
ping: unknown host google.com
shelly at neptune:~$ ping 127.0.0.1
PING 127.0.0.1 (127.0.0.1) 56(84) bytes of data.
64 bytes from 127.0.0.1: icmp_req=1 ttl=64 time=0.027 ms
64 bytes from 127.0.0.1: icmp_req=2 ttl=64 time=0.019 ms
64 bytes from 127.0.0.1: icmp_req=3 ttl=64 time=0.017 ms
64 bytes from 127.0.0.1: icmp_req=4 ttl=64 time=0.027 ms
64 bytes from 127.0.0.1: icmp_req=5 ttl=64 time=0.018 ms
64 bytes from 127.0.0.1: icmp_req=6 ttl=64 time=0.021 ms
64 bytes from 127.0.0.1: icmp_req=7 ttl=64 time=0.019 ms
^C
--- 127.0.0.1 ping statistics ---
7 packets transmitted, 7 received, 0% packet loss, time 5997ms
rtt min/avg/max/mdev = 0.017/0.021/0.027/0.004 ms
shelly at neptune:~$ ifconfig
eth0      Link encap:Ethernet  HWaddr 54:04:a6:82:6b:eb
          inet6 addr: fe80::5604:a6ff:fe82:6beb/64 Scope:Link
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:6 errors:0 dropped:0 overruns:0 frame:0
          TX packets:230 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000
          RX bytes:360 (360.0 B)  TX bytes:50506 (50.5 KB)
          Interrupt:46 Base address:0xe000

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:134 errors:0 dropped:0 overruns:0 frame:0
          TX packets:134 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:0
          RX bytes:10616 (10.6 KB)  TX bytes:10616 (10.6 KB)

shelly at neptune:~$ lshw -C network
WARNING: you should run this program as super-user.
  *-network
       description: Ethernet interface
       product: RTL8111/8168B PCI Express Gigabit Ethernet controller
       vendor: Realtek Semiconductor Co., Ltd.
       physical id: 0
       bus info: pci at 0000:04:00.0
       logical name: eth0
       version: 06
       serial: 54:04:a6:82:6b:eb
       size: 100Mbit/s
       capacity: 1Gbit/s
       width: 64 bits
       clock: 33MHz
       capabilities: bus_master cap_list ethernet physical tp mii 10bt
10bt-fd 100bt 100bt-fd 1000bt 1000bt-fd autonegotiation
       configuration: autonegotiation=on broadcast=yes driver=r8169
driverversion=2.3LK-NAPI duplex=full firmware=rtl8168e-3_0.0.4
03/27/12 latency=0 multicast=yes port=MII speed=100Mbit/s
       resources: irq:46 ioport:e000(size=256)
memory:d0004000-d0004fff memory:d0000000-d0003fff
WARNING: output may be incomplete or inaccurate, you should run this
program as super-user.
shelly at neptune:~$ sudo lshw -C network
  *-network
       description: Ethernet interface
       product: RTL8111/8168B PCI Express Gigabit Ethernet controller
       vendor: Realtek Semiconductor Co., Ltd.
       physical id: 0
       bus info: pci at 0000:04:00.0
       logical name: eth0
       version: 06
       serial: 54:04:a6:82:6b:eb
       size: 100Mbit/s
       capacity: 1Gbit/s
       width: 64 bits
       clock: 33MHz
       capabilities: pm msi pciexpress msix vpd bus_master cap_list
ethernet physical tp mii 10bt 10bt-fd 100bt 100bt-fd 1000bt 1000bt-fd
autonegotiation
       configuration: autonegotiation=on broadcast=yes driver=r8169
driverversion=2.3LK-NAPI duplex=full firmware=rtl8168e-3_0.0.4
03/27/12 latency=0 link=yes multicast=yes port=MII speed=100Mbit/s
       resources: irq:46 ioport:e000(size=256)
memory:d0004000-d0004fff memory:d0000000-d0003fff
shelly at neptune:~$ sudo service network-manager status
network-manager start/running, process 823
shelly at neptune:~$ sudo service network-manager restart
network-manager stop/waiting
network-manager start/running, process 1684
shelly at neptune:~$ lsmod | grep -i r8169
r8169                  62099  0
shelly at neptune:~$



-- 
Dotan Cohen

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