Cannot Use U.S. Robotics 56K Voice Faxmodem USB in Windows 2000 (257738)


The information in this article applies to:

  • Microsoft Windows 2000 Server
  • Microsoft Windows 2000 Advanced Server
  • Microsoft Windows 2000 Professional
This article was previously published under Q257738

SYMPTOMS

Windows 2000 may not be able to locate drivers for a U.S. Robotics 56K Voice Faxmodem USB that is connected to a Universal Serial Bus (USB) port, even though drivers for this modem are included with Windows 2000. If you manually specify the Windows 2000 drivers for this modem, the modem may not function in Windows 2000 when it is connected to a USB port. When you attempt to dial, you may receive the following error message:
Error 721
The remote computer is not responding received when dialing PPP host

CAUSE

Earlier versions of the firmware for this modem are not compatible with Windows 2000.

RESOLUTION

Download the latest firmware for this modem from the following 3Com Web site:

http://www.3com.com/products/en_US/downloadsindex.jsp

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Modification Type:MajorLast Reviewed:11/20/2003
Keywords:kberrmsg kbHardware kbprb w2000device KB257738
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