does he have a router? it is possible for the router to be online and downloading but the pc itself has some setting or other that has switched something off. EG if I leave my pc on but unattended for a half hour or so with a bbc listen again prog running - the music continues but if I try and use the pc to go online for something else it will not do so until I reboot. I know the router is online as the music continues and another pc connected to the router can go online. If I discover the setting on mine that is causing this I will come back and tell you.