WAN is a failover-group of three conections. Not round-robin, the fastest is tier1, the slowest is tier3.
LAN network is
10.10.10.0/24 where the gateway to WAN is 10.10.10.252 (CARP vIP)
VPN network is
10.10.90.0/24 Clients with an IP from this network don't get a gateway-IP during connection.
Clients from VPN can access the LAN
Without gateway Windows blocks all incoming traffic from VPN-TUN,
so Clients from LAN can't access VPN-Clients (if the windows-firewall is OFF they can, but this is no solution)
As you told me, there is no DHCP. Then - in my case - 10.10.90.1 is the right IP for the VPN-Clients as gateway?
Clients get an IP via VPN, also they get the configured DNS, but no gateway and I can't find where I can manage that.
regards