Did you run the network setup wizard? First run it on the computer sharing the connection and then on the other computer. Be sure you are sharing the correct adapter. If you have already done this, click control panel, admin tools, dbl-click the Services icon and then look for Internet Connection Sharing Service. Confirm that it says "Started." If not, R-click and choose Start.
I am having a router to which the net connection is made and a desktop is wired to this router.The problem is with the laptop connection from which I make a wireless connection through a wireless card.The laptop is getting into the WLAN (Shows the connected message) but not able to access the Internet.