Microsoft KB Archive/138811

= Cannot Add RAS ISDN Ports in Control Panel =

Article ID: 138811

Article Last Modified on 11/1/2006

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APPLIES TO


 * Microsoft Windows NT Workstation 3.5
 * Microsoft Windows NT Workstation 3.51
 * Microsoft Windows NT Server 3.5
 * Microsoft Windows NT Server 3.51

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This article was previously published under Q138811



SYMPTOMS
No ISDN ports are listed in the Add Port dialog box, when you attempt to add an ISDN port in the Remote Access Service (RAS) Setup dialog box after you start Control Panel, choose Network, select Remote Access, choose Configure, and then Add.



CAUSE
This problem occurs if you install a DigiBoard ISDN driver without immediately installing RAS when prompted.

If you do not have RAS installed under Windows NT and you install a DigiBoard ISDN adapter driver, you are prompted to install RAS after the DigiBoard driver installation completes. If you do not install RAS at this time, or if you receive an error trying to install RAS and you are unable to complete the installation, and you successfully install RAS at a later time, you cannot see any ISDN ports in the list of ports available to configure within RAS.



RESOLUTION

 * 1) Run Control Panel and choose Network.
 * 2) Select the DigiBoard ISDN adapter driver and choose Remove.
 * 3) Shut down and restart Windows NT.
 * 4) Reinstall the ISDN adapter driver and install RAS when prompted.



STATUS
Microsoft has confirmed this to be a bug in the Microsoft products listed at the beginning of this article.

The DigiBoard ISDN adapter is manufactured by DigiBoard International, Inc., a vendor independent of Microsoft; we make no warranty, implied or otherwise, regarding this product's performance or reliability.

Additional query words: prodnt PCIMAC datafire 3.5

Keywords: KB138811

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