Originally Posted by collierm
Forgive my ignorance, but what does AV have to do with ICMP packets? Surely its a lower layer than what AV scans at.
Some AV programs treat them as potential hacking attempts and so hook in to monitor them adding extra time.
Also, hardware wire walls examine such ICMP packets in a similar way depending on admin setup.
Times are not hugely affected but add a few up and they do...