Usually, the VPN error 809 is caused by the PPTP port (TCP 1723) or port L2TP or IKEv2 port (UDP ports 5) being blocked by a firewall or router. Since our VPN runs on the IKEv2 protocol this might be a reason you will face this error.
VPN “Always On” error code 809 is caused by PPTP city 1723) (TCP or L2TP port or IKEv2 port (UDP port 500, also known as 4500) is blocked in the VPN system or firewall. The solution actually turns these ports on depending on the firewall or router your VPN provider. Does Windows 8.1 have a built in VPN?
The Always On VPN error code 809 is caused by a PPTP location (TCP 1723), L2TP or IKEv2 port or port (UDP port 500 as well as 4500) blocked in the Internet VPN or firewall. The solution is to enable these ports normally on your firewall or router. You can try setting up an SSTP or OpenVPN based VPN tunnel with your VPN provider.
Fixing Always On VPN error code 809 When testing an Always On VPN connection, an administrator may encounter a scenario in which the VPN end user is unable to connect to the VPN server. On a Windows 10 member, the error message after a. Connect “Unable to connect to [connection name].
How to fix error 809 VPN on windows 7?
How to fix VPN 809?
Mistakes
What to do if you get VPN error 809?
To do this, follow these steps: If we get VPN error 809 when we try to establish your VPN connection and our MX is behind NAT, the solution is to set the AssumeUDPEncapsulationContextOnSendRule DWORD value, the Windows Registry is added. Make sure you can log into your computer as an officer.
What to do if your VPN says error 809?
Run regedit, set HKEY_LOCAL_MACHINE\\SYSTEM\\CurrentControlSet\\Services\\RasMan\\Parameters, and set the ProhibitIpSec uninstall key. 2. Restart Windows, try to establish a VPN connection to return.
What does it mean when VPN says error code 809?
Connection timed out. Error code 809 indicates a good VPN timeout, which means that the web VPN is not responding. Often this is also directly related to the network, but sometimes other factors can play a role in the network.
Why is my VPN saying error 809 on my computer?
VPN 809 deficiency usually occurs when software between the client and server blocks the ports that the VPN tunnel uses. Also, by default, Windows does not support NAT-T ipsec security companies for servers behind software NAT.

Ermias is a tech writer with a passion for helping people solve Windows problems. He loves to write and share his knowledge with others in the hope that they can benefit from it. He’s been writing about technology and software since he was in college, and has been an avid Microsoft fan ever since he first used Windows 95.