Hey, I had sygate a little bit ago. But I found something alot better. It's called COMODO Firewall pro.
It's alot better then sygate...I've had sygate for ages, and tried many other products (like macafee, zonealarm etc.) and this is by far the best one i've had.
I would recommend downloading this...It's a good product, but anyway...
Port Scanning is usually triggered by games in my case, I play alot of CSS and such, and I get port scanned from the same ip almost every time I start up my CounterStrike: Source, because it needs to know if your ports are available to use for the game...Or theres a small chance that it's a hacker and they are scanning your computer for open ports to start an attack...
Also, if you have trouble with doing something, or a port is blocked, you should try port forwarding...
