Surfboard continues pc activity after pc is shut down

I recently got a new pc with XP home, the old one had XP pro, I attemted to setup a home network to transfer information from the old to the new. After shutting down the new pc the surfboard still shows activity on the new pc. I ended up with a virus befo
re I detected this problem. I managed to use system retore and reset to the day I set up the pc. No change. Anyone have any ideas. I have tried everything reseting internet connections defalts. Help!