Error 781

Error 781 - Encryption Failed

 

Symptom: When connecting to a VPN server, you may receive this Error 781: The encryption attempt failed because no valid certificate was found.

 

Resolution: 1. If your VPN client is trying to use L2TP/IPSec for the VPN connection, you may receive above message. What you need to do is switching to a PPTP VPN connection, which doesn't need a certificate.  To do this, open the properties of the VPN connection, choose the Networking tab, and change the "Type of VPN" to PPTP VPN (default is Automatic). Also make sure you have good connection. Sometimes, poor connection can cause this issue too.

 

2. Install a valid machine certificate on the VPN server.

 

3. Stop and start the IPSec Policy Agent and RRAS  on the remote computer.

  • Email, SSL
  • 1 brukere syntes dette svaret var til hjelp
Var dette svaret til hjelp?

Related Articles

Error 806

Error 806:  a connection between your computer and the VPN server has been established but the...

Error 800

Error 800: Unable to establish the VPN connection. The VPN server may be un-reachable, or...

Error 797

Error 797 -  The modem could not be found.   Resolutions: 1. Rebooting the machine that may...

Error 619

Error 619: 1. The port was disconnected (or  Error 645, Dial-Up Networking could not complete...

Error 792

Error 792 -   The L2TP Connection Attempt failed because security negotiation timed out....

Powered by WHMCompleteSolution