Turn off Internet connection sharing, or ICS, by finding the appropriate option from within the Network and Sharing Center. ICS is used to connect multiple computers to one Internet connection when a wireless router is not in use. The host computer shares its connection with other devices on the network, but this becomes unnecessary if the host computer's connection is switched to a wireless router, which becomes the central point for the shared connection.Continue Reading
Click on the Start menu, and go to Control Panel. Select Network and Internet from the Control Panel, and select Network and Sharing Center from the Network and Internet options. Choose Manage Network Connections from the Network and Sharing Center.
Find the shared connection, and right click on it with your mouse. Select the Properties option from the list that pops up. Provide the administrator password when prompted.
Select the Sharing tab from the Properties window. Find "Allow other network users to connect through this computer's Internet connection," and click on the check mark in the box beside it to deselect it. Click OK at the bottom of the window to complete the process.