Loose network connection every hour !

[Felipe Alfaro Solana]

On 7 Feb 2005, at 00:17, Bob Chiodini wrote:

> On Sun, 2005-02-06 at 14:28 +0100, Vince wrote:
>> 		Hi,
>> 	I encounter a very strange problem with FC 3. Every hour I loose
>> network, I mean I can no more ping my computer nor get any traffic
>> through the Ethernet card. The ethernet card is a realtek !.
>> 	The only way to get the network back is to push one time the power
>> button of the computer and then networks comes back. I get the
>> following lines then in log of the computer:
>>
>> Feb  6 12:20:26 slimserver kernel: PCI: Found IRQ 12 for device
>> 0000:00:0a.0
>> Feb  6 12:20:26 slimserver kernel: eth0: link up, 100Mbps, 
>> full-duplex,
>> lpa 0x45E1
>> Feb  6 12:20:31 slimserver kernel: hub 1-0:1.0: reactivate --> -22
>> Feb  6 12:20:31 slimserver kernel: hub 2-0:1.0: reactivate --> -22
>>
>> 	Do you have an idea what is doing that ? I have removed apmd services
>> and everything that concerns energy savings !
>> 		Thanks for all your tips :)
>>
>> Vincèn
>>
>
> Vince,
>
> Try turning off auto-negotiation on your Ethernet card.  Set it to
> 100Mbps full duplex or 10 Mbps half duplex.  I had a similar problem
> with a realtek card.  I think it was an 8139.  It did not negotiate 
> well
> with a dlink router.
>
> ethtool or mii-tool should help determine which works best, then add 
> the
> appropriate option to /etc/modprobe.conf.  I could not find a 
> definition
> of realtek's supported kernel parameters in /usr/share/doc/...  Maybe
> google.

It could be related to power management. I have had similar issues on 
my old Pentium II when left unattended for some time. To solve my 
problems, I just did:

chkconfig apmd off
chkconfig acpid off
service apmd stop
service acpid stop