Check and see if Windows firewall is still running, I'm willing to bet that it is, for some reason KIS doesn't totally disable the windows firewall during the setup. I would also recommend disabling windows defender. To check both these: Code:
Go to the start menu and go to run,
type in services.msc, press enter (UAC might ask you for permission, allow it)
scroll down the list, towards the bottom you should see Windows Defender, double click on it, in the drop down box titled start-up type, choose disabled. Repeat this for Windows Firewall! See what happens (you will need to reboot the system first)