Wind 8 system connection network reported 651 error

I bought a Sony computer with a realtek pcie gbe.

I bought a router that is TP-Link. According to the instructions, log in to 192.168.1.1 to set up the wireless

connection name, network user name, password, and ok.

Sony computer can be connected to the wireless, wired is not connected, reported 651 error, other computers are also

can be connected, began to think that is the NIC driver problem, update the driver The problem is still not solved.

Later, I found that the network port corresponding to Sony's computer router is not bright, and I feel a little embarrassed.

I am afraid that it is a network card problem, the same network cable, other computers are ok.

Simply plug in the network interface, the router's light is on, it seems hopeful.

Restart the computer and set the network connection ip to automatic, it will be connected. Finally the problem is solved.