Windows XP Firewall
This topic applies to KCT NG 2026.2 and later. If you are on KCT 3.12.7 or earlier, see legacy topic.
If you are running KCT NG on an XP system you need to be aware that after Service Pack 2 the XP Firewall is turned on by default.
You may need to configure an exception for KCT NG or make another adjustment if you continue to run with the XP Firewall on.