Public bug reported:

Hi all,

I'm using feisty herd 5.

I'm on a IBM Thinkpad T43P -

02:00.0 Ethernet controller: Broadcom Corporation NetXtreme BCM5751M
Gigabit Ethernet PCI Express (rev 11)

Pretty frequently I'm getting network "lock ups". The system will stop
responding on the network then as quickly as the problem appeared it
goes.

I've tried several things. My first thoughts were its a synergy problem
as I normally use this to control the machine. However when the machine
is being controlled from the local keyboard and mouse I sometimes see
lock ups when browsing or using ssh to another system.

I'm moved both systems onto the same switch and checked the duplex and
speed settings. All is good!

I've checked to see if it was a X / ati related problem which was my
first thought. But when the synergy session dropped out the machine was
responsive from the local keyboard and mouse.

One way i can repeat this is with skype! If skype is running when i
receive a chat, the system always looses network for a couple of seconds
then returns to being fine.

Any ideas where i should look next.

ProblemType: Bug
Architecture: i386
Date: Fri Mar 16 12:50:29 2007
DistroRelease: Ubuntu 7.04
Uname: Linux rjharv-laptop 2.6.20-11-generic #2 SMP Thu Mar 15 08:03:07 UTC 
2007 i686 GNU/Linux

** Affects: Ubuntu
     Importance: Undecided
         Status: Unconfirmed

-- 
Network freezes in feisty
https://launchpad.net/bugs/92797

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