After replace an old Cisco switch with a new Dell switch, our ticketing software (PASS) is running slow in certain places within the program since. We have tried two different Dell switches and got the same results. We tried forcing the ports on the switch and the NICs in the workstations to full duplex, but that didn't seem to help with the slowness. We have put the Cisco switch back in and all seems OK.

Any advice/ideas would be greatly appreciated.