Aug 10, 2015
Jul 21, 2013 Windows 10 connecting to an L2TP VPN Server that is behind Aug 30, 2017 Repair: The L2TP Connection Attempt Failed Because the Oct 18, 2019 Connecting L2TP/ IPSec VPN Server Behind a NAT, Error Code May 14, 2018
Nov 29, 2016
Solved: VPN Connection error 789 - The Meraki Community 789 is classically bad PSK, but it can also pop up when you've got a bad credential OR when Windows has changed the password protocol on you. If Windows 10, check out the scripts in my signature. Regardless of version, set Encryption to "optional": Windows doesn't support PAP with 'required' encryption. Common VPN error codes troubleshooting - The Windows Club
Hello DaneA, I have the same problem on FVS318N and from my point there is a bug with the latest firmware (Firmware Version: 4.3.3-6). I enabled inbound ports (UDP 1701, 500, 4500) needs for L2TP and this doesn't help at all they are still closed.
I have a Windows 2008 Server to which I am trying to open a L2TP VPN connection on a Windows 7 x64 client. I am using a pre-shared key. I have successfully connected to the Server with a 32 bit Vista client and a 32 bit XP client. I use the exact same settings, internet connection, firewall, etc. on the Windows 7 64 bit client with no luck. Windows 10 VPN error 789 connection failed due to security If this does not resolve the Windows 10 VPN 789 error, try another solution. READ: How to solve Windows 10; 2. check the records . check that the correct certificate is used, both on the client and on the web page. If a pre-distributed key (PSK) is used, make sure that the same PSK is configured on the client side and on the VPN web server machine. Windows 10 VPN to Sonicwall error 789 - Networking Apr 04, 2018