Internet Connection Sharing Disable By Firewall

Internet Connection Sharing is a Microsoft program that lets you share one Internet connection among many computers. Some firewalls turn it off when they install, along with connection sharing programs from any vendor.

One solution is to repeat the ICS setup. But first check with your firewall vendor; some make tools you can download to reestablish your ICS connection quickly. You can download the tools from the vendors’ Web sites.

Also be careful about the effects ICS can have on your firewall. Some vendors note that you can install their firewall on the ICS gateway and guard all computers that share its connection from malicious inbound traffic. But if you want to guard against outbound traffic, you’ll have to install the firewall on every ICS computer you want to protect.