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Old 07-06-2010, 06:33 AM   #1
Registered: Apr 2008
Posts: 60

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Unhappy network card not working

hello friends

i am facing a strange problem, and problem is with my NIC
i have installed both windows and Red hat 5.4 in my Laptop
in Red hat i am using IP address
Problem is that i am unable to ping other PC in the network. Firewall is off. Actually when i boot red hat, at the time when it activates the eth0, after activating light stops blinking in the Nic port. after login i am able to ping myself but not other hosts.
i have reinstall the OS again but problem is sustain. and in windows i did not find any problem.

again i tried one more thing that is i made a change in eth0 conf file not to activate eth0 at boot ("ONBOOT=no")
then restart the system. after restart light blinks in the nic port.
but after login as i type this command "ifup eth0" to activate eth0 to establish communication, light stops blinking the NIC port. and it makes me isolate from the network.

PLZ help me what kind of problem this is.

Old 07-06-2010, 07:31 AM   #2
LQ Newbie
Registered: Jul 2010
Location: Budapest, Hungary
Distribution: SuSE
Posts: 6

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I was in this situation ( Intel server, intel e1000 NIC, my desktop machine has an AC'97 Sound card and after a kernel update I have to recompile and reinstall the driver for it despite the kernel has its own driver ) and for the solution I downloaded the latest Linux driver of my NIC and compiled, installed.

Sometimes there are modifications, bugfixes in the NIC's software and the driver you have in you kernel tree may not work. The manufacturers always release updated drivers for their products.
Old 07-07-2010, 01:27 AM   #3
Registered: Apr 2008
Posts: 60

Original Poster
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But few days ago it was working properly and i was able to access internet
But what is happening right now i am unable to understand.
i have reinstalled it but problem again sustain.
Old 07-09-2010, 04:33 PM   #4
LQ Newbie
Registered: Jan 2010
Posts: 24

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Have you tried "sudo ifconfig eth0 up"? If this works you'll also need to add a default gateway with something like "sudo route add default gw <gateway addr> eth0.


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