Packet Tracer 7.4.3.2 Routing Table Corruption

In this packet tracer i was able to get a basic idea no how ISP make proper use of static routes in order to get proper communication with proper other devices and vice versa. I stated the lab with all interfaces off and an empty routing table . I quickly configured all the necessary interfaces, resulting in the directly connected routes being added into the routing table. From there i wen t and added the RIP protocol into all the routers with the network 172.16.0.0 command. All the routers would be inputed with the same address since it is from  from the same subnetted network. from there all that was left to do was just connect R3 to R4 with a copper cross over connection. With this everything would ping successfully.