How to set up my routers to support AFP

Hi,
I’m trouble to set up my MikroTik routers. I have 3 routers. My main router is Cisco 192.168.1.1/16 and other 2 routers(hAP ac and 951G-2HnD) are under this main router.
The hAP ac is in the following network: 192.168.2.1/24 . The MT951G-2HnD is in the following network: 192.168.3.1/24.
My Synology NAS is under MT951G-2HnD with the following IP: 192.168.3.98.
I can ping from hAP ac my NAS and I also reach NAS SMB server but AFP( Apple Filing Protocol) only works under MT951G-2HnD (under 192.168.3.1/24 domain).
Is there any possibility to AFP works under my hAPac router? If AFP works only on one network(192.168.2.1/24) then how can I set up my routers to be all in one network?

I hope that somebody can give information.