Connecting to a Stormshield firewall VPN

[jlgarnier]

Dear Community,

I'm trying to connect to an IPSEC VPN server embedded into a Stormshield firewall, from a Windows 11 machine. I've got the server certificate (-> Manage Trusted CA Certificate List), a username and a password (Auth type = Standard Password Authentication), created a VPN adapter and a VPN connection with information above.

However, the client fails to connect, returning Error 1 and I have no clue why...

Did anyone here ever try to connect to a firewall this way?

Thanks in advance for any help!

[solo]

No, never. L2TP/IPsec connection is like this https://www.vpngate.net/en/howto_l2tp.aspx