The operating system on your computer is Windows XP / Windows 2000. We will check the IP address on your computer. There are different methods to check the IP address on a computer. If you know the IP address of the computer then click Next.

Step 1: Open the command Prompt.
Click on START .
Go to RUN .
Type cmd  in the Run box  and click OK.
You will see a black window (command prompt). 
Click on Start.
Go to All programs.
Go to Accessories.
You will find command prompt.
Step 2 : Check the IP address on the computer
You have the command prompt opened.
In the command prompt type ipconfig  and hit Enter on your key board.
You will see the IP address .

This is the IP address of your computer
Note down the IP address  and default gateway numbers.