zipp's solution should solve it.But if not,here's a few more things to check. Other devices on the same phone line, such as a telephone, fax or answering machine may interfere with your modems operation, even if you are not using the other devices at the time. Line noise may also be the cause: e.g Radio frequency interference (eg. Using a mobile phone next to your modem) Loose wiring/jacks Old or faulty wiring Poor lines