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Unused Port Blocking
I have Norton Internet Security 2010 installed on 2 laptops in my home. They are both running Windows Vista 32-bit. In the Norton History on one of them, it is constantly coming up with, "Unused port blocking has blocked communications. Inbound TCP connection from 192.168.1.103, local service Port www-http(80)." The port randomly changes to many different ports, not just 80 (for example, 81, 515, 2191, 443, and 9100. The IP address it is pointing out is the other laptop. I have performed a full system scan on both computers, and neither has come up with anything. What could be causing this? What should I do? Are either of my computers at risk of something?