Last night we had problems here at our lan party with slow network and viruses and other stuff. we found the person responsible for the viruses making other peoples anti-virus programs scan and pop up their thingys and he had porn and hacks so he had to be disconnected and cleaned up. now every thing is fine but we got a table cluster having problems we got this switch at the table cluster plugged into another one then goes strait to the core switch we have another three tables doing the same and no problems. I'am on a computer on the core switch which I'am at montoring the network traffic coming and going in and off the network. and the modem plug into this core switch. don't know why all the ports on the switch are blocking the other switch and everyone on it as a whole. all swiches are HP Procurves 24 and 48 ports.