Ethernet Not Working on Ubuntu 14.04 LTS

[sps828gaming]

Hi Eyeryone,

I've been using Ubuntu 13.10 for a while and just updated to 14.04 yesterday and my ethernet doesn't work at all. When I plug in the wire the light flashes and the computer tries to connect but doesn't. I've heard other people on the forums had this issue but no one seems to have solved it yet. I have a wifi adapter but it only works in Windows but I can't download the drivers for it because the ethernet won't work. Does anyone know how to fix this problem?

[sps828gaming]

*bump

[Bashing-om]

sps828gaming; Patience !

Let thoe who do know who might be able to help the most have a chance to see your request.

However, it is me that responds 1st.

Let's begin with the basics for a general looksee:
1. network card detected ?

sudo lshw -C network
lspci | grep Ethernet

2. IP address assigned ?

ipconfig eth0 ##(or whichever the network is,eth1)

3. Check /etc/network/interfaces

cat /etc/network/interfaces

4. DNS resolution ?

cat /etc/resolv.conf
ls -la /etc/resolvconf/resolv.conf.d/base ##empty as in size 0 ?

And see where we fo from here.

it is all a process

[sps828gaming]

Yes, the network card is recognized and I don't see an ip address. The only thing that could be the ip address inet6 address. When I typed in

cat /etc/network/interfaces

I get

# interfaces(5) file used by ifup(8) and ifdown(8)
auto lo
iface lo inet loopback

And when I type in

cat /etc/resolv.conf

I get

# Dynamic resolv.conf(5) file for glibc resolver(3) generated by resolvconf(8)
#        DO NOT EDIT THIS FILE BY HAND -- YOUR CHANGES WILL BE OVERWRITTEN

And when I type in

ls -la /etc/resolvconf/resolv.conf.d/base ##empty as in size 0 ?

I get

-rw-r--r== 1 root root 0 Dec 13  2012 /etc/resolvconf/resolv.conf.d/base

[Bashing-om]

sps828gaming; Well !

No /etc/resolv.conf contents ?, we will get back to that.

What returns from terminal commands:

ifconfig

Making progress

slowly

[Iowan]

Thats a normal-looking /etc/network/interfaces for a system running Network Manager.
ifconfig (or ifconfig -a) should show what the interfaces (network cards) are up to.

[sps828gaming]

I get

eth0       Link encap:Ethernet  HWaddr 94:de:80:dc:19:de
             inet6 adr: fe80::96de:80ff:fedc:19de/64 Scope:Link
             UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
             RX 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)
             Interrupts:18

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:65536 Metric:1
            RX packets:305 errors:0 dropped:0 overruns:0 frame:0
            TX packets:305 errors:0 dropped:0 overruns:0 carrier:0
            collisions:0 txqueuelen:0
            RX bytes:22913 (22.9 KB) TX bytes:22913 (22.9 KB)

[Bashing-om]

sps828gaming; UnGood.

No "inet addr' returned. Are you on a router ?
if so try and "reclone" the router, and reboot the system.

goota be a cause

[sps828gaming]

Hi everyone sorry for this thread turns out the port I was plugged into on the router was dead! but I plugged it in to another port and all is working! Thanks for the help!

[Bashing-om]

sps828gaming; Hey, Great.

Glad the problem was found.

Please mark this thread solved; aides others seeking the solution, helps keep the forum clean and precludes others miss-directing efforts to aid.
Top of post -> thread tools

just keep on keep'n on