I have 4 computers, 2 connected wirelessly, 1 connected cabled to the router, and the main computer connected directly into the internet. Everysince I connected the 4th computer (cabled) into the network everything has slowed down dramaticly the website google takes almost 7 times longer then it used to take. Every computer has a Firewall, Anti Virus, and Anti Spyware. Every computer has been updated fully. I have 500kbps down and 50up, so there should be no reason for this slow down. The 4th computer is cabled because it is only 2 feet away from the main computer and router. They are both the gaming Pc's. Every computer is running Windows Xp. All Graphics cards Nvidia Geforce 6600's and 6800's. 1gig of memory each. Does anyone have any ides what is going on?