Fortinet Knowledge Base - View Document

The remote connection was not made because the attempted VPN tunnels failed. The VPN server might be unreachable. If this connection is attempting to use an L2TP/IPsec tunnel, the security parameters required for IPsec negotiation might not be configured properly. Possible cause. Fortinet Knowledge Base - View Document Rating: (25 Ratings) (25 Ratings) Fortinet Knowledge Base - View Document Once the remote server has been removed, the user is able to log FortiClient VPN successfully. Considering it is an expected behavior for 2FA email authentication, configure user only under member and keep remote server under remote group option without selecting any server.

Mar 11, 2019

Server unreachable without using VPN, sometimes (This site

Jan 13, 2012 · The VPN server may be unreachable.” This is most commonly caused by, either the firewall blocking any kind of traffic towards the VPN server IP address or the FortiClient application itself by the firewall on the host or on the network, or either by routing errors towards the IP address of the VPN server.

Once the remote server has been removed, the user is able to log FortiClient VPN successfully. Considering it is an expected behavior for 2FA email authentication, configure user only under member and keep remote server under remote group option without selecting any server. Why do I see the error "Unable to establish VPN connection The VPN server may be unreachable. (-14)" during a FortiClient logon attempt? KB FAQ: A Duo Security Knowledge Base Article. Jul 10, 2020 unable to establish the VPN connection. The VPN server may