Posted 01 October 2008 - 01:55 PM
All of them? How many do you have? And how high are your lag spikes going?
Did you also turn off the windows firewall?
Since you are behind a router, is it possible to remove the router and plug one computer directly to the modem? Does the problem continue to happen?
Finally, are you running any other programs at the same time that access the internet? Especially file-sharing programs like bit torrent or limewire?