I have a DELL LATITUDE E6420, with while INTEL(R) 82579LM Gigabit Network Connection Network Adapter. In device manager the device is said to be working properly. But while connecting to internet, the LAN always says unidentified network. . Giving a fixed IP to it displays the Multiple Gateway problem.

While the Wireless seems to be working properly while accessing the Internet.

Have been trying to figure out the problem..

help me with this..