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

[drew einhorn]

It worked just fine last night.

First thing I noticed is that web pages are no  longer accessible.

Then I looked for the NetworkManager icon in the panel.
It's not there.

I have another partition that boots into a test copy of lucid.
rebooted to that partition.  Networking works there, so nothing
happened to the laptop hardware or the access point.

Then I tried plugging in a network cable for a wired connection.
That didn't work either.

Then I started looking around in /var/log/messages

I can see a little bit about dhcp and NetworkManager trying to start

Jun  8 08:12:34 drew-s10 kernel: [    4.957208] type=1505
audit(1276006311.965:3): operation="profile_load" pid=392
name=/sbin/dhclient3
Jun  8 08:12:34 drew-s10 kernel: [    4.957888] type=1505
audit(1276006311.965:4): operation="profile_load" pid=392
name=/usr/lib/NetworkManager/nm-dhcp-client.action
Jun  8 08:12:34 drew-s10 kernel: [    4.958221] type=1505
audit(1276006311.965:5): operation="profile_load" pid=392
name=/usr/lib/connman/scripts/dhclient-script


I see the wired interface going up and down when I plug and
unplug the wired cable.

Jun  8 08:26:47 drew-s10 kernel: [  900.777215] tg3: eth0: Link is up
at 100 Mbps, full duplex.
Jun  8 08:26:47 drew-s10 kernel: [  900.777231] tg3: eth0: Flow
control is off for TX and off for RX.
Jun  8 08:26:47 drew-s10 kernel: [  900.778213]
ADDRCONF(NETDEV_CHANGE): eth0: link becomes ready
Jun  8 08:28:29 drew-s10 kernel: [ 1002.790523] tg3: eth0: Link is down.
Jun  8 08:28:39 drew-s10 kernel: [ 1012.511550] tg3: eth0: Link is up
at 100 Mbps, full duplex.
Jun  8 08:28:39 drew-s10 kernel: [ 1012.511560] tg3: eth0: Flow
control is off for TX and off for RX.
Jun  8 08:44:21 drew-s10 kernel: [ 1954.661949] tg3: eth0: Link is down.
Jun  8 08:44:47 drew-s10 kernel: [ 1980.031619] tg3: eth0: Link is up
at 100 Mbps, full duplex.
Jun  8 08:44:47 drew-s10 kernel: [ 1980.031634] tg3: eth0: Flow
control is off for TX and off for RX.
Jun  8 08:45:32 drew-s10 kernel: [ 2024.949573] tg3: eth0: Link is down.

A little earlier I see where the kernel is looking for hardware

Jun  8 07:48:51 drew-s10 kernel: [    2.642738] eth0: Tigon3
[partno(BCM95906) rev c002] (PCI Express) MAC address
00:23:8b:64:3d:c3
Jun  8 07:48:51 drew-s10 kernel: [    2.642748] eth0: attached PHY is
5906 (10/100Base-TX Ethernet) (WireSpeed[0])
Jun  8 07:48:51 drew-s10 kernel: [    2.642755] eth0: RXcsums[1]
LinkChgREG[0] MIirq[0] ASF[0] TSOcap[0]
Jun  8 07:48:51 drew-s10 kernel: [    2.642760] eth0:
dma_rwctrl[76180000] dma_mask[64-bit]

Jun  8 08:12:34 drew-s10 kernel: [   45.756245] eth1: Broadcom BCM4315
802.11 Wireless Controller 5.10.91.9

Right now I can't think of the next place I should look.

-- 
Drew Einhorn

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