Cannot Connect to RAS Server at 56 Kbps (244390)


The information in this article applies to:

  • Microsoft Windows NT Server 4.0 Terminal Server Edition
  • Microsoft Windows 2000 Server
  • Microsoft Windows 2000 Advanced Server
  • Microsoft Windows 2000 Professional
  • Microsoft Windows NT Server 4.0
  • Microsoft Windows NT Server, Enterprise Edition 4.0
  • Microsoft Windows NT Workstation 4.0
  • Microsoft Routing and Remote Access Service Update for Windows NT Server 4.0
  • Microsoft Windows 95
  • Microsoft Windows 98
This article was previously published under Q244390

SUMMARY

A Remote Access Services (RAS) server may not answer at 56 Kbps. You may get a connection at 28.8 or 33.6 Kbps.

MORE INFORMATION

This behavior can occur because standard analog phone lines are not capable of supporting the 56 Kbps standards. A digital line and special hardware is required to achieve a 56 Kbps connection.

The following three criteria must be met before a 56 Kbps connection succeeds:
  • A digital circuit is required at one end and the modem must be digital.
  • V.90 support is required at both ends.
  • There can be no more than one analog to digital conversion in the path between the modems.

REFERENCES

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Modification Type:MinorLast Reviewed:12/17/2004
Keywords:kbDialUp kbinfo KB244390
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