When sending 5 ICMP packets to the FastHub 400 Mangement Interface I get 3 out of 5 replies. This occurs with some hubs and not others - so it's not consistent. I have checked speed, cables, configurations....and cannot seem to find a problem. I have a Cisco 1720 Router with a Fastethernet interface that attaches to a FastHub 400. I've changed the router interface to 10M Half, 100M half as well as letting it auto-negotiate and I see the problem with one configuration, but I do not see it with another - and the configurations are identical. What am I missing?