I experience the same problems. Even after taking out the multithreaded ICMP (as said in the FAQ), I see still a differance between PingPlotter and PING. So zero loss in PING and some 30% loss in PingPlotter.<br>In both case the same packetsize (1024 Byte).<br>Any hints to overcome this? The routers in this path are all Cisco12000 and it is not the router type I would say. <br>It could be that the interface where the problem starts in PingPlotter is a dual channalized gigabitethernet. But again with PING no problem what so ever.<br><br>