onboard lan(Realtek RTL8168/8111 PCI-E Gigabit Ethernet NIC)??

Has there been a thunderstorm recently in your area. I lost a NIC to a lightning strike.

In device manager, does the network adapter show a questions mark or a red X? If so you may have a driver problem or a bad NIC. Do you have another NIC card you can borrow to install and see if the problems persists.

Have you messed around with any cables?

Have you tried to test your NIC card by doing a loop-back test (ping 127.0.0.1)? This will tell you if the NIC is working.

If the NIC tests OK after loop-back test, try pinging the router/default gateway address (Ex: ping 192.168.1.1). This will test your gateway/router and the connecting network cable.

I have gigabyte board with a failed integrated nic. If disabling it from the device manager and re-enabling it does not fix it, it is probably hosed.

Hi all,
I have a home network with 2 computers. I have a Realtek RTL8168/8111 Family PCI-E Gigabit Ethernet NIC on board in my system2 and the mother board is asus p5kpl am/ps.

I get my internet connection using a UTStarcom dsl router. I connected both systems to the router. In system1 i get 100 mbps connection and the net speed is good. But in the system2 i am getting only 10 mbps and net speed is very low.


The system1 is connected using a 3 meter cable and system2 using a 17 meter cable. The cable is cat5 and uses rj45 connectors.The cable but it works fine in my friends house when i use the same cable there. So it might not be faulty.

I tried solving the isuue by all methods i know like changing the NIC config parameters to override the autonegotiation to 1gbps but still the problem persists.

I haven't updated windows. i have just installed windows and still it is giving 10mbps only. I also tried installing windows 7. Also i used the driver which came from Realtek , but no use.

What can be the problem? Please give me a solution.