Region : UnitedKingdom

Model : TD-W8970

Hardware Version : V1

Firmware Version : 0.6.0 2.1 v000c.0 Build 130415 Rel.34164n

ISP : plusnet

Hi,
I have setup 2 vpn tunnels from my TD-W8970 to places that use TD-8960N (Firmware Version: 1.4.0 Build 110921 Rel.17774n Hardware Version: TD-W8960N v3 0x00000002 )
and I can ping and connect to any ip used at their end but they can only ping 192.168.1.1 which is my router and not 192.168.1.104 which is my Synology DS212J that they need to access.

Both tunnels are similarly configured:
Tunnel 1 on my TD-W8970

IPSec Connection Name: Tony1
Remote IPSec Gateway Address(URL): 89.240.xx.xx
Tunnel access from local IP addresses: Subnet
IP Address for VPN: 192.168.1.0
IP Subnetmask:255.255.255.0
Tunnel access from remote IP addresses: Subnet
IP Address for VPN:192.168.0.0
IP Subnetmask:255.255.255.0
Key Exchange Method: Auto(IKE) Manual
Authentication Method: Pre-Shared Key
Pre-Shared Key: ******
Perfect Forward Secrecy: Disable

Tunnel 2 on my TD-W8970

IPSec Connection Name: Tony2
Remote IPSec Gateway Address(URL): 80.43.xx.xx
Tunnel access from local IP addresses: Subnet
IP Address for VPN: 192.168.1.0
IP Subnetmask:255.255.255.0
Tunnel access from remote IP addresses: Subnet
IP Address for VPN:192.168.2.0
IP Subnetmask:255.255.255.0
Key Exchange Method: Auto(IKE) Manual
Authentication Method: Pre-Shared Key
Pre-Shared Key: ******
Perfect Forward Secrecy: Disable

Tunnel on 1st TD-8960N
IPSec Connection Name: steve
Remote IPSec Gateway Address(URL): 80.229.xx.xx
Tunnel access from local IP addresses: Subnet
IP Address for VPN: 192.168.0.0
IP Subnetmask: 255.255.255.0
Tunnel access from remote IP addresses: Subnet
IP Address for VPN: 192.168.1.1
IP Subnetmask: 255.255.255.0
Key Exchange Method: Auto(IKE)
Authentication Method: Pre-Shared Key
Pre-Shared Key: ****
Perfect Forward Secrecy: Disable

Tunnel on 2nd TD-8960N
IPSec Connection Name: steve
Remote IPSec Gateway Address(URL): 80.229.xx.xx
Tunnel access from local IP addresses: Subnet
IP Address for VPN: 192.168.2.0
IP Subnetmask: 255.255.255.0
Tunnel access from remote IP addresses: Subnet
IP Address for VPN: 192.168.1.1
IP Subnetmask: 255.255.255.0
Key Exchange Method: Auto(IKE)
Authentication Method: Pre-Shared Key
Pre-Shared Key: ****
Perfect Forward Secrecy: Disable

In all cases the IPSec Advanced settings have been left at default.
Have I made a simple mistake or is it a Synology problem?

Thanks
Steve