Ring any bells?
I connect to the internet via ethernet/LAN (XP).
When I first boot up for the day, everything goes fine with the connection.
I then usually leave the computer for a couple of hours, but when I come back to it my connection appears to have gone to sleep and only a reboot will bring it back to life.
Any thoughts?
(computer screen set to go off after 10 minutes inactivity, HD 20 minutes. No system hibernate etc.)