I am new to packet tracer and I am trying to ping PC A to PC B with no success. They can ping correctly within the same network like PC B to Switch B but cannot get across the routers (etc. ping PC B to Router A fails vice versa).
I set the default gateway for all of the config to be 22.214.171.124 and I have attached my pkt file here just in case anyone wants to open it up.
I tried to change the gateways but it still isn't working. I do not quite understand 'In order to enable the communication between the computers you need a routing protocol like RIP, EIGRP, OSPF, IS-IS or use static routing.' but I assigned my configurations with static IP addresses if that is what it means.