Microsoft Knowledge Base

The information in this article applies to:

• The Microsoft Network versions 1.2, 1.3, 2.0, 2.5

SYMPTOMS

You may experience difficulty connecting to MSN, The Microsoft Network, with a U.S. Robotics Sportster 28,800 bps modem.

CAUSE

U.S. Robotics Sportster 28.8 modems with a firmware revision prior to 4/18/95 have known problems.

If you have updated firmware, you may experience connection problems because the U.S. Robotics Sportster 28.8 modem attempts to connect at 28,800 bps, and sometimes MSN modems cannot connect at this speed.

RESOLUTION

You can obtain a firmware revision dated 4/18/95 or later from U.S. Robotics. Make sure to have the UPC bar code and serial number of the modem available.

If you have updated firmware, you can increase your possibility of connecting by limiting the modem speed to 26,400 bps. To do so, follow these steps:

1. Click Start, point to Settings, and then click Control Panel.

2. Double-click Modems.

3. Click the modem you are using, and then click Properties.

4. On the Connection tab, click Advanced.

5. In the Extra Settings box, type the following command:

         &N13
   

6. Click OK or Close until you return to Windows.

   Command     Function
   -------------------------
   ATS56=128   Disables VFC
   ATS56=64    Disables V.34
   ATS56=0     Modem reset
   &N0         Modem reset