Hello people. Just registered, and already have a question; I have a ROUTER1 which connects to the NET, then I have ROUTER2 and ROUTER3 connected to ROUTER1. I have PC1 and PC2 connected to ROUTER2 and PC3 and PC4 connected to ROUTER3. Cables running from ROUTER1 (port 1 and port 2) to ROUTER2 and ROUTER3 are connected to their WAN ports. Now the IP assigment goes as follows; ROUTER1 - 192.168.1.1 ROUTER2 - 192.168.2.1 ROUTER3 - 192.168.3.1 Problem; Computers connected to ROUTER2 cannot see computers connected to ROUTER3, and vice versa. File and printer sharing is not happening. I know I can switch ROUTER2 and ROUTER3 to "dumb switches" and put all computers on 192.168.1.1 segment, but I do not want to. I want to figure out how to enable file and printer sharing between those three segments (192.168.1.1, 192.168.2.1, and 192.168.3.1) Please help me out with this problem. I would really appreciate it. Thank you. What do I need to do????