(i) Check whether the VPN server is reachable or not (or else Ping the server) (ii) If you are using PPTP, check whether the PPTP Port (TCS 1723) or GRE Port (47) blocked in Firewall.
Oct 24, 2014 VPN Error Code: 809 - PPTP,L2TP,SSTP & OpenVPN Access to VPN Error Code: 809 - PPTP,L2TP,SSTP & OpenVPN Access to […] Azure Point to Site VPN failure with error code 809 Dec 20, 2018 修正:Windows 10でのVPNエラー809 VPNエラー809 は通常、クライアントとサーバーの間のファイアウォールが、VPNトンネルが使用するポートをブロックしているときに発生します。 さらに、デフォルトでは、WindowsはNATデバイスの背後にあるサーバーへのIPsec NAT-Tセキュリティアソシエーションをサポートしません。
Jul 20, 2016
VPN Error Code: 809 - PPTP,L2TP,SSTP & OpenVPN Access to VPN Error Code: 809 - PPTP,L2TP,SSTP & OpenVPN Access to […] Azure Point to Site VPN failure with error code 809 Dec 20, 2018
disabling vpn passthrough-s some fixes to my win8 registry and switching to ip instead of dns-name used in IKEv2 connection properties. all of these took no effect. then i decided to exclude JNR3210 off my home network and input an internet cable directly into my pc network adapter.
ошибка 809 при соединении через шлюз MikroTik по L2tp IpSec. Устранение ошибки 809 в Windows Использую VPN немного для другой цели - для доступа к домашней и дачной сети извне. L2TP VPN Error 809 & 789 with Windows 7 x64 - works with 4) The VPN server may not be able to get IP from DHCP for the VPN client. So, you may want to re-configure VPN host networking settings. For XP pro VPN host, go to the Properties of the VPN>Network, check Specify TCP/IP address and Allow calling computer to specify its own IP address, and uncheck Assign TCP/IP addresses automatically using DHCP.