Networking on my karmic laptop doesn't work any more!!

drew einhorn drew.einhorn at
Tue Jun 8 20:18:47 UTC 2010

On Tue, Jun 8, 2010 at 1:22 PM, NoOp <glgxg at> wrote:

> You may try:
> $ ifconfig
> to see if you actually have an IP.

Hmm.  It's working better, but not all better now.
I do have an ip now and I can browse the web.
But I still don't have the NM applet.

> $ sudo apt-get /etc/init.d/networking restart
> and then check ifconfig to ensure that you've actually got an IP address
> & then ping or etc to see if you can ping.
> If networking is actually working but the NM applet just isn't showing
> up, then it might be worth reinstalling:
> $ sudo apt-get install --reinstall network-manager network-manager-gnome

They reinstalled.  The system wanted a reboot.  Still no NM applet after the
reboot.  I do have an ip and a working wireless connection at the moment.

> If you do not have those packages archived on your system & have no
> working network, you can download them via another machine & 'sneaker
> net' them to the laptop:
> scroll down to the "Download network..." and click on the appropriate
> architecture (amd64 or i386). Download the .deb & reinstall.
> But I'd first look at ifconfig that is actually showing. If you have an
> proper IP address, then you may actually have a working network connect
> & just not know it. Try a ping to etc.
> If not, post the results of ifconfig, iwconfig, & 'cat
> /etc/network/interfaces'.

drew at drew-s10:~$ ifconfig
eth0      Link encap:Ethernet  HWaddr 00:23:8b:64:3d:c3
          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)

eth1      Link encap:Ethernet  HWaddr 00:21:00:a0:ec:c1
          inet addr:  Bcast:  Mask:
          inet6 addr: fe80::221:ff:fea0:ecc1/64 Scope:Link
          RX packets:2514 errors:0 dropped:0 overruns:0 frame:2192
          TX packets:2363 errors:6 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000
          RX bytes:2175141 (2.1 MB)  TX bytes:508798 (508.7 KB)

lo        Link encap:Local Loopback
          inet addr:  Mask:
          inet6 addr: ::1/128 Scope:Host
          UP LOOPBACK RUNNING  MTU:16436  Metric:1
          RX packets:98 errors:0 dropped:0 overruns:0 frame:0
          TX packets:98 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:0
          RX bytes:47661 (47.6 KB)  TX bytes:47661 (47.6 KB)

drew at drew-s10:~$ iwconfig
lo        no wireless extensions.

eth0      no wireless extensions.

eth1      IEEE 802.11  Nickname:""
          Access Point: Not-Associated

vboxnet0  no wireless extensions.

drew at drew-s10:~$ cat /etc/network/interfaces
auto lo
iface lo inet loopback

Hmm.  I don't understand how the wireless network is working, when
iwconfig says it's not associated with an access point.  But the
wireless network must be working since I have connectivity without a
cable plugged into the wired port.

Drew Einhorn

"You can see a lot by just looking."
  --  Yogi Berra

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