I am running Ubuntu 10.04 LTS on a Dell PowerEdge T410 and using a wired network connection. Whenever system becomes idle, it looses network connection.
I needed to either logout or restart the machine in order to make network connections work. However, I have another Dell server running 10.04 LTS and it is working fine.
$ lspci ... ... 01:00.0 Ethernet controller: Broadcom Corporation NetXtreme II BCM5716 Gigabit Ethernet (rev 20) 01:00.1 Ethernet controller: Broadcom Corporation NetXtreme II BCM5716 Gigabit Ethernet (rev 20) ... ... $ uname -a Linux ubuntu-user 2.6.32-34-server #77-Ubuntu SMP Tue Sep 13 20:54:38 UTC 2011 x86_64 GNU/Linux $ tail -300 /var/log/kern.log | grep "Nov 4" Nov 4 12:36:34 ubuntu-user kernel: [161497.534069] npviewer.bin: segfault at eeb740a4 ip 00000000f5d74c83 sp 00000000ff8d4ed0 error 4 in libflashplayer.so[f58f7000+fc7000] $ tail -10 /var/log/pm-powersave.log /usr/lib/pm-utils/power.d/powersave-policy-hda-powerdown false:success. /usr/lib/pm-utils/power.d/sched-powersave false:**sched policy powersave OFF success. /usr/lib/pm-utils/power.d/95hdparm-apm true:success. /usr/lib/pm-utils/power.d/anacron true:stop: Unknown instance: success. /usr/lib/pm-utils/power.d/powersave-policy-dirty-writeback true:success. /usr/lib/pm-utils/power.d/powersave-policy-hda-powerdown true:success. /usr/lib/pm-utils/power.d/sched-powersave true:**sched policy powersave ON success.
What is the problem and how can I solve it?