Hello, I am a consultant in central Texas and I have a new install of avast! Free 5.0 on a customer's computer. Avast! Free does not allow the system access the internet through a wireless router. I can disable avast! at the system tray and gain access to the internet. It all works fine without avast being active. We are running Windows XP through a Linksys WRT160N router over wireless. Any suggestions would be appreciated. Thanks