I'll have to purchase some more stack-wise cables, I can't configure any speed or duplex settings on these ports as far as know.   config is stack port 1 to port 2 on the next member and loops around from the bottom stack member to the top switch.   Firmware wise they're on 16.9 I'll see if I can upgrade them late tonight to 17 build. maybe it's a resolved problem in that. ... View more

This is something that you are best to do via your firewall and not a switch port if you want accurate information.    You could also sort your network clients by usage and look at the last 2 hours worth of data to see where the culprit lies. ... View more