ethernet problems, cable unplugged?

[saturni]

my wired ethernet is not working, it used to work and now it doesn't. wireless works but i want a wired connection. the connection manager says cable unplugged when i have a working cable plugged in.

[ardvark71]

Hi...

First, please take a look here.

Regards....

[saturni]

user1@laptop:~$ lspci
00:00.0 Host bridge: Intel Corporation Mobile 4 Series Chipset Memory Controller Hub (rev 07)
00:02.0 VGA compatible controller: Intel Corporation Mobile 4 Series Chipset Integrated Graphics Controller (rev 07)
00:02.1 Display controller: Intel Corporation Mobile 4 Series Chipset Integrated Graphics Controller (rev 07)
00:1a.0 USB Controller: Intel Corporation 82801I (ICH9 Family) USB UHCI Controller #4 (rev 03)
00:1a.1 USB Controller: Intel Corporation 82801I (ICH9 Family) USB UHCI Controller #5 (rev 03)
00:1a.7 USB Controller: Intel Corporation 82801I (ICH9 Family) USB2 EHCI Controller #2 (rev 03)
00:1b.0 Audio device: Intel Corporation 82801I (ICH9 Family) HD Audio Controller (rev 03)
00:1c.0 PCI bridge: Intel Corporation 82801I (ICH9 Family) PCI Express Port 1 (rev 03)
00:1c.1 PCI bridge: Intel Corporation 82801I (ICH9 Family) PCI Express Port 2 (rev 03)
00:1d.0 USB Controller: Intel Corporation 82801I (ICH9 Family) USB UHCI Controller #1 (rev 03)
00:1d.1 USB Controller: Intel Corporation 82801I (ICH9 Family) USB UHCI Controller #2 (rev 03)
00:1d.2 USB Controller: Intel Corporation 82801I (ICH9 Family) USB UHCI Controller #3 (rev 03)
00:1d.3 USB Controller: Intel Corporation 82801I (ICH9 Family) USB UHCI Controller #6 (rev 03)
00:1d.7 USB Controller: Intel Corporation 82801I (ICH9 Family) USB2 EHCI Controller #1 (rev 03)
00:1e.0 PCI bridge: Intel Corporation 82801 Mobile PCI Bridge (rev 93)
00:1f.0 ISA bridge: Intel Corporation ICH9M LPC Interface Controller (rev 03)
00:1f.2 SATA controller: Intel Corporation ICH9M/M-E SATA AHCI Controller (rev 03)
00:1f.3 SMBus: Intel Corporation 82801I (ICH9 Family) SMBus Controller (rev 03)
00:1f.6 Signal processing controller: Intel Corporation 82801I (ICH9 Family) Thermal Subsystem (rev 03)
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. RTL8101E/RTL8102E PCI Express Fast Ethernet controller (rev 02)
user1@laptop:~$

[saturni]

i am also having a nightmare problem with flash and java. both need udated and can't figure out how. i'm getting ready to scrap kubuntu and go back to windows. i like kde and some of the other features of this distro but i'm getting sick of every little update or change being a huge ordeal. if kubuntu wants to move ahead in the desktop market and attract new users they are going to have to simplify the installation and upgrade process. not everyone who might use their distro has a degree in computer science.

[ardvark71]

Hi...

Please take a second look, there's more information I need.

Not trying to be rude, I'm just wanting people to understand the problem this has been.

EDIT: For flash player, does this help? For Java, please see here.

Regards...

[saturni]

why don't you just tell me what you need

[saturni]

my main concern is my ethernet and why kubuntu is not recognizing the ethernet cable and network. the cable works, router works, it is kubuntu that is not doing it's job

[saturni]

linux 3.0.0-17generic
kde 4.7.4 (4.7.4)

[ardvark71]

Hi...

I did....

1. What is your computer make and model number, lspci readout (done,) and version of Kubuntu?
2. How and when did this problem start? After an update?
3. What have you done to correct the problem in detail, if anything?

I did post links in my previous post that might help you with the installation of Flash and Java.

Regards...

[saturni]

hp g71 notebook
k11.10 amd64
i don't know when this problem started, i've been using my wireless and i want to go ethernet wired for speed/security. i have done nothing besides try to set up a wired connection which does not work because my network manager keeps telling me there is a cable unplugged when there is not.

[ardvark71]

Hi...

Thank you

Could you also post the readouts of these two commands...

sudo lshw -C network

ifconfig -a

I have to take off at this point, I'll be back later to check on this thread, Lord willing.

Regards...

[saturni]

user1@laptop:~$ sudo lshw -C network
[sudo] password for user1:
*-network
description: Wireless interface
product: AR9285 Wireless Network Adapter (PCI-Express)
vendor: Atheros Communications Inc.
physical id: 0
bus info: pci@0000:02:00.0
logical name: wlan0
version: 01
serial: 90:4c:e5:57:8e:96
width: 64 bits
clock: 33MHz
capabilities: pm msi pciexpress bus_master cap_list ethernet physical wireless
configuration: broadcast=yes driver=ath9k driverversion=3.0.0-17-generic firmware=N/A ip=192.168.1.3 latency=0 link=yes multicast=yes wireless=IEEE 802.11bgn
resources: irq:16 memory:d3500000-d350ffff
*-network DISABLED
description: Ethernet interface
product: RTL8101E/RTL8102E PCI Express Fast Ethernet controller
vendor: Realtek Semiconductor Co., Ltd.
physical id: 0
bus info: pci@0000:03:00.0
logical name: eth0
version: 02
size: 100Mbit/s
capacity: 100Mbit/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 autonegotiation
configuration: autonegotiation=on broadcast=yes driver=r8169 driverversion=2.3LK-NAPI duplex=full firmware=N/A latency=0 link=no multicast=yes port=MII speed=100Mbit/s
resources: irq:42 ioport:2000(size=256) memory:d1410000-d1410fff memory:d1400000-d140ffff memory:d1420000-d142ffff
user1@laptop:~$ ifconfig -a
eth0 Link encap:Ethernet HWaddr 00:00:00:00:00:00
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:0x2000

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:24 errors:0 dropped:0 overruns:0 frame:0
TX packets:24 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:1696 (1.6 KB) TX bytes:1696 (1.6 KB)

wlan0 Link encap:Ethernet HWaddr 90:4c:e5:57:8e:96
inet addr:192.168.1.3 Bcast:192.168.1.255 Mask:255.255.255.0
inet6 addr: fe80::924c:e5ff:fe57:8e96/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:1438083 errors:0 dropped:0 overruns:0 frame:0
TX packets:780662 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:2168808589 (2.1 GB) TX bytes:70631682 (70.6 MB)

[woodsmoke]

It could very well be a bad connection in terms of one wire not connecting well. Cat5 can do that.

woodsmoke

[saturni]

doubtful that it's a connection prob since lshw -C network says eth0 is disabled for some reason even though i never disabled it. i need to know how to enable eth0. my network manager says eth0 is unmanaged though it is set to auto dhcp. wireless works but i need eth0 to work.

[saturni]

ok, not sure why this happened but i got it to work by changing my mac address for eth0. i noticed that eth0 hw address was all zeros so i changed the last number to see if that would show up when i ran ifconfig -a and was connected by ethernet instantly. i ran this
ifconfig eth0 down
ifconfig eth0 hw ether 00:00:00:00:00:09
ifconfig eth0 up
does anyone know why this happened?