There is no network rule configured between the local Internal network and the remote IPsec network.
Check the requirement for the type of VPN protocol you are using.
- The VPN client firewall may have been set to block the outcoming VPN ports.
- The VPN server may not be set to allow the incoming VPN port(s).
- The client and server sides may be using different VPN protocols.
- The client and server may be using the same VPN protocol but different optional port numbers.
- Your Windows or Linux computer may be using an internal firewall that is blocking the VPN.
