I am using 3.0.669 on Win XP with a wireless connection. Recently I have been experiencing a conflict between Eset AV and my wireless connection. The AV in attempting to update/scan on start up seems to stop the PC linking up to the router. This does not happen all of the time, but enough to annoy. A reboot always solves the problem as does disabling of the start up update/scan of the AV. Edit. It does not happen when I use cable.