12.04 wired network doesn't work RTL8111/8168B
- by laket
its a fresh 12.04 install 64bits.
wifi works fine, wired stays off with cable connected and network-manager shows as if cable is disconnected.
Turning off networking lights up my network-cards leds, turning networking on shuts off the leds and no communication is possible.
I already tried, turning off the network-manager (sudo service network-manager stop) and setting up my eth0 manually, as soon as I switch off the network-manager my leds light up, but after setting up manually eth0 (sudo ifconfig eth0 10.2.10.114 netmask 255.255.0.0 up) the leds turn off again. I am still dual booting with 10.04 where I have no issues at all, leaving the cable connected all time to my notebook and a switch.
Here is some hardware info:
lshw:
*-network
description: Ethernet interface
product: RTL8111/8168B PCI Express Gigabit Ethernet controller
vendor: Realtek Semiconductor Co., Ltd.
physical id: 0
bus info: pci@0000:03:00.0
logical name: eth0
version: 03
serial: c8:0a:a9:d7:05:97
size: 10Mbit/s
capacity: 1Gbit/s
width: 64 bits
clock: 33MHz
capabilities: pm msi pciexpress msix vpd bus_master cap_list rom 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=half firmware=rtl_nic/rtl8168d-2.fw latency=0 link=no multicast=yes port=MII speed=10Mbit/s
resources: irq:42 ioport:2000(size=256) memory:f0004000-f0004fff memory:f0000000-f0003fff memory:f0010000-f001ffff
lspci:
02:00.0 Network controller: Atheros Communications Inc. AR9285 Wireless Network Adapter (PCI-Express) (rev 01)
03:00.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL8111/8168B PCI Express Gigabit Ethernet controller (rev 03)
ifconfig eth0:
eth0 Link encap:Ethernet HWaddr c8:0a:a9:d7:05:97
inet addr:10.2.10.114 Bcast:10.2.255.255 Mask:255.255.0.0
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)
Interrupt:42 Base address:0xc000
cat /etc/network/interfaces: (already tried here with and w/o eth0)
auto lo eth0
iface lo inet loopback
cat /etc/NetworkManager/NetworkManager.conf
[main]
plugins=ifupdown,keyfile
dns=dnsmasq
[ifupdown]
managed=false
Any help is welcome ;)
Laket
