Check with your ISP for possible init string, modem script or configuration changes. You may be able to compensate for noisy phone lines by lowering the modem speed slightly. For 28.8 or 33.6 modems, try setting the port speed to 38400. For 14.4 modems, try 19200 and for 56k modems, try 57600. Consult your modem's setup instructions on how to do this.
Traffic is the most common cause of pages that load slowly.
The more people on the Internet at any given time there are, the more traffic. Surfing during the day or late at night may be faster than in the early evening. Noisy phone lines are another major cause of slow Internet access. See Getting Disconnected for more information. Click here for more details on this software for Windows.