There has been a problem when setting up a router in Packet Tracer.
The network consists of two routers, switcher and two computers.
It is necessary to configure routing (static), according to the specified parameters:

PC1: IP-192.168.1.10 / 24, Default Gateway: 192.168.1.1;
PC2: IP-192.168.3.10 / 24, Default Gateway: 192.168.3.1;
R1: F 0/0 - 192.168.1.1 / 24, F 0/1 - 192.168.1.2;
R1: F 0/0 - 192.168.3.1 / 24, F 0/1 - 192.168.2.2.

did not ping PC1 with PC2, I realized that R1 and R2 are not in the same subnet. Changed
K1: F 0/1 - 192.168.1.2 on F 0/1 - 192.168.2.1. The problem remains.
Just say what to do?

Answer 1, Authority 100%

I think that first is worth setting all the subnets to start!
If I correctly understood you want to implement a mark. Smell: pc1 – L3 (1) – L2 – L3 (2) – PC2
(L3 – Router; L2 switch)
L3 (1) has LAN 192.168.1.10/24 Client Subnet
L3 (1) has WAN 192.168.1.2
L3 (2) has LAN 192.168.3.1/24 Client subnet
L3 (2) has wan 192.168.2.1
Total, this is somehow “not very” expanded subnet 192.168.1.1/16 : in your small network 65534 workers’ host. Cool for real 4 cars)
But even if you go on a wide hand to implement the network / 16 , it is better for this:
192.168.1.1/30 (Subnet PC1-L3 (1))
192.168.1.5/30 (L3 (1) -l3 (2))
192.168.1.9/30 (PC2-L3 subnet (2))
Further prescribe how you wanted on L3 (1) route to L3 (2).
Router (Config) #IP Route 0.0.0.0 0.0.0.0 192.168.1.6 register at 192.168.1.5.
And vice versa.
While wrote, for the sake of interest checked in CPT:

Router # SH ip int br
Router # SH ip int brief
Interface IP-Address OK? Method Status Protocol
Fastethernet0 / 0 192.168.1.9 Yes MANUAL UP UP
Fastethernet0 / 1 192.168.1.5 Yes MANUAL UP UP
Vlan1 Unassigned yes Unset Administrative Down Down
Router # Ping 192.168.1.2
Type Escape Sequence to ABORT.
Sending 5, 100-BYTE ICMP Echos to 192.168.1.2, Timeout IS 2 Seconds:
!!!!!
SUCCESS RATE IS 100 PERCENT (5/5), ROUND-TRIP MIN / AVG / MAX = 0/0/1 MS