I have a Cisco 1720 router. It has a 10/100 nic. On the other end is a Procurve 2810 switch. It has a 10/100/1000 port. I am trying to figure out why the switch is showing RX Drops. No just a few. Like 1 every second at least. There is moderate traffic over the connection. I have check to make sure both were set to 100FD and even tried 100HD but, the problem still persist. I have turn on Flow Control in the switch but nothing changes. Is it possible that the router is to old and can't handle being connected to this new of a switch? Is that possible? I am looking for way to track down the cause. I have tried everything I can think of.