If your modem it is timing out during file transfers or loading Web Pages, you might try increasing the timeout period. To change the Time Out::
2.Go to HKEY_LOCAL_MACHINE\System\CurrentControlSet\ Services\ Class\ Modem\ XXXX\ Settings Where XXXX is the number of your modem
3. In the right panel and double click on Inactivity Timeout
4.The number of minutes for a timeout should be entered between the brackets.
5.For example, a setting could have S19=<10> to set it to 10 minutes.