rasepberry pi ethernet problem

I want to install MATLAB and Simulink support package for Raspberry Pi follow this steps to do . I directly connect my laptop with Raspberry Pi using Ethernat cable. But i didn't get output.

The network interface "Ethernet" is not connected. Check your Ethernet connection to Raspberry Pi. The FDX/LNK/100 LEDs on the Raspberry Pi board should be illuminated.

[Amin Hallaj]

same problem. Did you find the solution?

[Sylvain]

If you have windows, you could use the Cmd command

arp -A

your Rpi should be able to find the IP address of the pi. Then you could ping the ip to ensure the pi is connected.