Error Message "Error 629" When Dial-up Server Disconnects Dial-up Clients

When a client attempts to connect to either a Microsoft Windows 98 Second Edition or Microsoft Windows Millennium Edition (Me) dial-up server, the client may receive the following error message:

This behavior can occur when either the Windows Me or Windows 98 Second Edition computer is configured to enable the dial-up server to use passthrough authentication (user-level security) to authenticate and to connect dial-up clients to a NetWare server. The dial-up server has the Require encrypted password option enabled.

To work around this behavior, you can use either of the following methods:

Method 1

For both Windows 98 Second Edition and Windows Me dial-up server computers, you can use this easy method; however, it can cause Password Authentication Protocol (PAP) to be used, which you do not want if your system needs a high level of security.

To use this method, follow these steps:

1. Double-click the My Computer icon on the desktop.
2. Double-click the Dial-Up Networking icon.
3. On the Connections menu, click Dial-Up Server.
4. Click the Server Type button, and click to clear the Require encrypted password check box.

Method 2

This method only works on Windows 98 Second Edition-based computers. To use this method, perform the following steps:

1. Double-click the My Computer icon on the desktop.
2. On the View menu, click Folder Options.
3. Click to select the Show all Files check box, and then click OK.
4. Click Start, click Find, and then click Files or Folders.
5. Rename the following files located in the Windows\System folder with a different extension (such as, se):
   
   Pppmac.vxd to Pppmac.se
   Pppndi.dll to Pppndi.se
   Rasapi32.dll to Rasapi32.se (You must do this in Safe mode.)
   Rnaui.dll to Rnaui.se (You must do this in Safe mode.)
6. Insert a Windows 98 First Edition compact disc in the CD-ROM drive.
7. Click Start, click Run, and then in the Open box, type:
   
   sfc
   
   Then click OK.
8. Click Extract one file from installation disk.
9. Extract the preceding four files into the Windows\System folder.
10. Close the System File Checker (SFC), shut down your computer, turn off your computer, and then restart your computer.
11. Double-click My Computer, and then double-click Dial-Up Networking.
12. On the Connections menu, click Dial-Up Server, and then click Server Type.
13. Click to select the Require encrypted password check box, and then click OK.

When user-level security is used to authenticate users by means of passthrough authentication on a Netware Bindery services server through a Microsoft Windows 95, Microsoft Windows 98, Windows 98 Second Edition, or Windows Me dial-up server, and the Require encrypted password option is enabled for the dial-up server, Shiva Password Authentication Protocol (SPAP) is the authentication protocol used. If the Require encrypted password option is not enabled, Password Authentication Protocol (PAP) is used. PAP is not secure and uses plain text for passwords.

For additional information about the use of SPAP and PAP, click the article number below to view the article in the Microsoft Knowledge Base: