Connecting two Mikrotik and managing both

RouterOS General
1

Hello All,

I have 2 Mikrotik Routers:
A. RB962UiGS-5HacT2HnT (hAP ac) - IP 192.168.100.1 with LAN network 192.168.100.0/24
B. RB951G-2HnD - IP 192.168.99.1 with LAN network 192.168.99.0/24
both of them with 5 Gigabit ports.

Currently I connected ISP(Internet) to RouterA port1, and RouterA port5 connected to RouterB port1.
Devices connected to RouterB with IP 192.168.99.X can access Internet, can ping within its network 192.168.99.X, also can ping the devices on RouterA (192.168.100.X), can access the RouterA 192.168.100.1 with winbox, everything good.
But my computer (IP 192.168.100.101) connected to RouterA cannot ping the devices on RouterB (192.168.99.X) even access the RouterB itself (192.168.99.1).

I tried to add a static route on RouterA pointing all the traffic to 192.168.99.X going to the interface eth5, but it is not working.

Any idea or anything I missed?
Thanks in advance!

2

From your description, it sounds like you are using an interface as a gateway on router A.
That gateway in that route should be the outside ip of router B.

Else post copy of both router configs:

In terminal window, enter /export file=routera hide-sensitive, same for router b