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Remote VPN Clients Cannot Log On to Network

This article was previously published under Q329858
When virtual private network (VPN) clients try to remotely log on to your network, they may be denied access. Users may receive one of the following error messages:
Error 781: The encryption attempt failed because no valid certificate was found
Error 628: The connection was closed
Client computers on your internal network may be unaffected by this issue.
This issue may occur if your VPN server is located behind a Linksys BEFSR41 router.
To resolve this issue, update the firmware for your Linksys BEFSR41 router. For information about how to do this, contact Linksys, Inc.

For information about how to contact Linksys Inc., click the appropriate article number in the following list to view the article in the Microsoft Knowledge Base:
65416 Hardware and Software Third-Party Vendor Contact List, A-K

60781 Hardware and Software Third-Party Vendor Contact List, L-P

60782 Hardware and Software Third-Party Vendor Contact List, Q-Z
Microsoft provides third-party contact information to help you find technical support. This contact information may change without notice. Microsoft does not guarantee the accuracy of this third-party contact information.
The third-party products that are discussed in this article are manufactured by companies that are independent of Microsoft. Microsoft makes no warranty, implied or otherwise, regarding the performance or reliability of these products.

Article ID: 329858 - Last Review: 02/28/2007 23:00:25 - Revision: 1.4

  • Microsoft Windows 2000 Advanced Server
  • Microsoft Windows 2000 Server
  • kberrmsg kbprb KB329858