Could you explain how to configure the RAS to get access to my units.

1) telnet into the RasFinder
2) select option RasFinder Configuration
3) select IP
4) select IP port information
5) select WAN 1 and select option 17 to change the IP address for the WAN
6) repeat step 5 for WAN 2 and WAN 3

LAN, WAN1, WAN2 and WAN3 IP addresses must belong to the same subnet.