Thread: no longer able to connect to network

hi everyone, first post

okay, have ubuntu server 11.10, been working since downloaded many months ago, of sudden cant connect network. tried installing new network card. didnt help. got out usb had ubuntu 10.04 (normal version, gui , stuff), , connected internet straight away, no problems.

also, on startup, "the disk drive /dev/mapper/matt--server2-swap1 not ready yet or not present." pops up, tries pile of things "stopping cold plug devices, stopping log initial device creation starting enable boot-time encrypted block devices" etc, , waits 60 seconds network configuration, , says continuing without network configuration.

ifconfig returns

eth0 link encap:ethernet hwaddr 00:11:2f:5f:cb:c6
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)
interrupt19 base address:0xb400

and lo , virbr0. type them if needed.


cat /etc/resolv.conf returns

domain bigpond
search bigpond
nameserver 10.0.0.138

10.0.0.138 router

cat /etc/network/interfaces

#<description of file>

# loopback network interface
auto lo
iface lo inet loopback

# primary network interface
auto eth0
iface eth0 inet dhcp

cat /etc/udev/rules.d/70-persistent-net.rules

#<description of file>

#pci device 0x10ec:0x8139 (8139too)
subsystem=="net, action=="add", drivers=="?*", attr{address}=="00:11:2f:6f:cb:c6", attr{dev_id}==0x0", attr{type}=="1", kernel=="eth*", name="eth0"

#pci device 0x1814:0x0302 (rt61pci)
subsystem=="net, action=="add", drivers=="?*", attr{address}=="00:26:5a:08:9e:65", attr{dev_id}==0x0", attr{type}=="1", kernel=="wlan*", name="wlan0"

#pci device 0x13f0:0x1023 (sundance technology ipg triple-speed ethernet)
subsystem=="net, action=="add", drivers=="?*", attr{address}=="20:cf:30:d6:fd:16", attr{dev_id}==0x0", attr{type}=="1", kernel=="eth*", name="eth1"

lspci -nnk | grep -ia2 net

02:0a.0 ethernet controller [0200] sundance technology inc / ic plus corp ip1000 family gigabit ethernet [13f0:1023] (rev 41)
subsystem: asustek computer inc. nx1101 [1043:8180]
kernel driver in use: sundance technology ipg triple-speed ethernet
kernel modules: ipg
02:0e.0 firewire (ieee 1394) [0c00]: texas instruments tsb43ab22a ieee-1394a-2000 controller (phy/link) [iohci-lynx] [104c:8023]
--
02:0f.0 ethernetcontroller 0200]: realtek semiconductor co., ltd. rtl-8139/8139c/8139c+ [10ec:8139] (rev 10)
subsystem: asustek computer inc. device [1043:80b3]
kernel driver in use: 8139too

lsmod | grep 81

ip_tables 18106 3 iptable_nat,iptable_mangle,iptable_filter
stp 12811 1 bridge
8139too 23283 0
8139cp 26762 0

can please try , on network?

edit1: typed output of
cat /etc/network/interfaces
cat /etc/udev/rules.d/70-persistent-net.rules
lspci -nnk | grep -ia2 net

edit2: typed out lsmod | grep 81

hi,

please show:

code:

cat /etc/network/interfaces  cat /etc/udev/rules.d/70-persistent-net.rules  lspci -nnk | grep -ia2 net  lsmod

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