OS: Win ME
pc port adapter: 2wire

I have 2 computers.The other pc is connected using ethernet but I can't get the other computer connected using pc port. I tried to plug the pc port into diff USB slots and made sure that there are no other devices on the usb slots.The only adapter I have is the 2wire adapter which is not showing any sign that the adapter is not properly installed.I tried uninstalling the adapter and reinstalling it..still wont work.What seems to be wrong?I also rebooted the computer.I tried to setup a direct connection between the pc port and the router to test if I can pull up the GUI of the router..It wont work...The Local Area Network light on the pc port doesnt turn solid green..Do I have a defective pc port?I havent tried connecting the pc port on my other computer,I'm scared I might mess up the connection.