What operating system are you running and which modem do you have? As far as i know there is a known issue (unresolved) with W98/W98SE and the Speedtouch 330 modem. There is an update to drivers for this modem on the Thomson website but it hasn't improved my connection. I'm on Win98SE with the 330 and generally I don't have a problem. On the odd occasion it won't make the connection and I have to do a restart, or in some instances a reboot. I've never had to reinstall software.