When you attempt to establish a VPN connection to a VPN server, you receive:
Error 781
Encryption failed because no valid certificate was found.
This can occur on a new connection or on one that previously worked.
The error is produced because the connection is incomplete. You should:
1. Verify basic network connectivity between the client and the server.
2. Make sure that you have name resolution between the client and the server.
3. Use the Networking and TCP/IP troubleshooter in the Windows 2000 Help.
See Q169790 - How to Troubleshoot Basic TCP/IP Problems in Windows NT 4.0.
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