Connecting 2 networks through MikroTik RB450

I have a RB 450 connected to my ISP cable router on WAN interface.
Port 2 is master.
Ports 3 & 4 are slaved to port 2.
I have removed port 5 (interface ip 192.168.2.2) from the management of port 2. I have a DHCP server running and handing out IPs for this interface → connected to Linksys wireless.
The linksys is set to acquire wan ip DHCP wich it does from the mikrotik.

From the devices that connect to the linksys I can ping the mikrotik interfaces (port 2)192.168.1.1, (port 5)192.168.2.2, the WAN ISP IP, access the internet, no problem. I cannot ping
From the LAN side, (port 2) I have internet access, and can ping anything on my subnet, but cannot ping anything on 192.168.3.0 network.

MikroTik

Wan int 1 → isp asigned ip
Int 2 LAN1 192.168.1.1 DHCP server
int 3 Slaved to int 1
int 4 Slaved to int 1
int 5 Not (slaved) LAN2 192.168.2.2


linksys
Wan int → ip asigned by MikroTik int 5 DHCP server 192.168.2.7

inside network 192.168.3.0 255.255.255.240 DHCP enabled

Question: How can i get these two networks to share resources? they can both ping the interfaces on the MikroTik, but neither can ping past it’s respective interface to the other network. Both networks have internet access via the MilroTik WAN interface.