Allow LAN TCP/1716 # Allow inbound LAN connections on port 1716
Allow LAN UDP/1716 # Allow outbound LAN connections on port 1716
Block * # Block all other connections
Rules are checked from top to bottom, stopping after the first match.
Make sure Exclude * is at the bottom.
KDE Connect is by default blocked by "Force Block Incoming Connections"
To resolve the issue you need to to setup a rule to allow this connection.