View Full Version : [ubuntu] Wired network problems

November 13th, 2011, 03:39 AM
I've got an issue with no network. I'm using a wired network and have made sure the driver isn't blacklisted. It's the r8169. I did the lspci -nnk to look for it and it's present. But... when I looked at startup stuff in the panel it shows that the network isn't installed in the panel. But it is there and I can configure it but it won't work to no avail. It was working fine until I upgraded it. Any help would be greatly appreciated. I'm using 11.10

November 13th, 2011, 08:27 PM

November 13th, 2011, 11:49 PM

please show the outputs of:

uname -a
lspci -nnk | grep -iA2 net
ifconfig -a
cat /etc/network/interfaces
cat /etc/resolv.conf

November 13th, 2011, 11:54 PM
Well, if it's sympathy you want, I have the same problem. Upgraded to 11.10, no ethernet. Other OS's work fine (Mint Debian, Windoze). Another forum suggested how to turn on auto eth0, but I can't find it now.

November 14th, 2011, 03:58 AM

please show the outputs of:

uname -a
lspci -nnk | grep -iA2 net
ifconfig -a
cat /etc/network/interfaces
cat /etc/resolv.conf

Here are the commands and output you wanted. Thanks very much for helping. I do know if I go up into the panel and right click on my network that wired network and device not managed are grayed out. Also when looking at startup applications in the panel nm-applet says missing network in panel.

uname -a
Linux ubuntu 3.0.0-12-generic-pae #20-Ubuntu SMP Fri Oct 7 16:37:17 UTC 2011 i686 athlon i386 GNU/Linux

lspci -nnk | grep -iA2 net
02:00.0 Ethernet controller [0200]: Realtek Semiconductor Co., Ltd. RTL8111/8168B PCI Express Gigabit Ethernet controller [10ec:8168] (rev 01)
Subsystem: ASUSTeK Computer Inc. P5B [1043:81aa]
Kernel driver in use: r8169

ifconfig -a
eth0 Link encap:Ethernet HWaddr 00:1b:fc:1d:34:be
inet addr: Bcast: Mask:
inet6 addr: fe80::21b:fcff:fe1d:34be/64 Scope:Link
RX packets:70 errors:0 dropped:0 overruns:0 frame:0
TX packets:61 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:22582 (22.5 KB) TX bytes:8487 (8.4 KB)

lo Link encap:Local Loopback
inet addr: Mask:
inet6 addr: ::1/128 Scope:Host
RX packets:30 errors:0 dropped:0 overruns:0 frame:0
TX packets:30 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:2332 (2.3 KB) TX bytes:2332 (2.3 KB)

Module Size Used by
hidp 22351 0
bnep 17923 2
rfcomm 38408 12
btusb 18160 2
bluetooth 148839 24 hidp,bnep,rfcomm,btusb
ppdev 12849 0
joydev 17393 0
snd_hda_codec_realtek 254125 1
snd_hda_intel 28358 2
snd_hda_codec 91754 2 snd_hda_codec_realtek,snd_hda_intel
snd_hwdep 13276 1 snd_hda_codec
snd_pcm 80468 2 snd_hda_intel,snd_hda_codec
snd_seq_midi 13132 0
snd_rawmidi 25241 1 snd_seq_midi
snd_seq_midi_event 14475 1 snd_seq_midi
snd_seq 51567 2 snd_seq_midi,snd_seq_midi_event
snd_timer 28932 2 snd_pcm,snd_seq
psmouse 63474 0
binfmt_misc 17292 1
snd_seq_device 14172 3 snd_seq_midi,snd_rawmidi,snd_seq
serio_raw 12990 0
snd 55902 13 snd_hda_codec_realtek,snd_hda_intel,snd_hda_codec, snd_hwdep,snd_pcm,snd_rawmidi,snd_seq,snd_timer,sn d_seq_device
k8temp 12905 0
soundcore 12600 1 snd
snd_page_alloc 14108 2 snd_hda_intel,snd_pcm
sp5100_tco 13495 0
i2c_piix4 13093 0
nouveau 667307 3
ttm 65224 1 nouveau
drm_kms_helper 32889 1 nouveau
drm 196322 5 nouveau,ttm,drm_kms_helper
i2c_algo_bit 13199 1 nouveau
mxm_wmi 12859 1 nouveau
wmi 18744 1 mxm_wmi
parport_pc 32114 1
video 18908 1 nouveau
asus_atk0110 17742 0
ati_agp 13242 0
lp 17455 0
parport 40930 3 ppdev,parport_pc,lp
hid_logitech 17405 0
ff_memless 12945 1 hid_logitech
usbhid 41905 1 hid_logitech
hid 77367 3 hidp,hid_logitech,usbhid
usb_storage 44173 1
uas 17699 0
floppy 60310 0
r8169 47200 0
pata_atiixp 12967 2
ahci 21634 0
libahci 25761 1 ahci

cat /etc/network/interfaces
# The loopback network interface
auto lo
iface lo inet loopback

# The primary network interface
auto eth0
iface eth0 inet static
# dns-* options are implemented by the resolvconf package, if installed

cat /etc/resolv.conf
# Generated by NetworkManager

November 14th, 2011, 11:09 AM
You are using a router? If yes, remove anything but the 2 "lo" lines from your /etc/network/interfaces

November 14th, 2011, 06:08 PM
Well I gave that a shot and it didn't work. After looking at the file it appeared to me that the router wasn't kicking out the correct stuff. I simply unplugged the cable and plugged it into a diff port on the router, and Bango! Working now. Thanks for your help.