network card not working
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 220.127.116.11/24.
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.