On two separate networks that I have set up, one being my home network, I have one computer using windows XP that will loose connection with my network. I have tried reconnecting and using msconfig to do a diagnostic boot with no success in correcting the problem. The only thing that seemed to work was reinstalling windows. A repair install would not work, only a full install. Any ideas what may be causing this. It has happend twice on my home system and once on the other system. All the other computers on both networks connect fine.