Sophos UTM9 L2TP/Ipsec vpn connection problem with Windows 10 built-in client

Hallo Avraam and welcome to the UTM Community!

Pictures are very helpful here when it's of the Edit of a configuration item.  In the case of logs, it's better to copy and paste here from the log.  If you prefer, obfuscate IPs like 84.XX.YY.121, 10.X.Y.100, 192.168.X.200 and 172.2X.Y.51.  That lets us see immediately which IPs are local and which are identical or just in the same subnet.  In this case, there's not enough information to help you until we see the results of what Harsh has asked for.

Cheers - Bob

Hi again,

There are 2 different public IP Addresses.

"no connection has been authorized with policy=PSK"

Please show a picture of the 'Main Settings' in the UTM for 'L2TP over IPsec' remote access.

Cheers - Bob

Hi Bob,

Thanks for your support.

I have configured the local authentication and the pre-shared key.

#L2TP

#Firewall_Config

#SNAT

Hi Bob,

Thanks for your support.

I have configured the local authentication and the pre-shared key.

#L2TP

#Firewall_Config

#SNAT