HI Antonio_king: I've had the same problem as you..didn't removed anything related to windows live onecare and its firewall won't work..digging into the logs of one care i found out that the firewall layer ( or driver dont know how to call it since its a .inf file) gives a error...tried some more less nlited images. Didn't use any of the network tweaks and now its works ok. Did u used the network tweaks? Hope it helps Koopie