I have 2 DGS1224T RevC. with current firmware. I have noticed odd behavior when pinging one of the 2 switches. Ping times seem to alternate from fast to slow ie: 220ms, 23.5ms, 226ms, 23.0ms, 272ms etc.... This only occurs with one of the two switches. There is nothing between me and the switch and this happens from any client attached to the network. I recently setup Cacti to monitor my network and it showed the same results with the addition of 70% availability reading. I know the switch is dropping packets, about 25% - 30% dropped. My question is how do I go about troubleshooting this? or is it time for a new switch? Any help would be really appreciated. Thanks in advance.