Hello,
Ive just looked at 3 computers in a network and they seem to have a problem with one of them.
The main pc has shared folders on it but the other two computers cant connect to it. I cant ping the main pc from the other two but I can ping the other two pcs from the main pc.

Also the main pc has Nortons installed but no icon in the system tray and it didnt appear to be running. When I tried to install it I got an error message. I started to uninstall it but its taking ages. Im assuming this could all be virus related. What do you think?