Ping problem to all mikrotik port

Situation :
RTO on all router port. No problem at all for other things, only seems the PING get dropped or going somewhere.

Filter rules :
[it@] > ip firewall filter print
Flags: X - disabled, I - invalid, D - dynamic
0 ;;; Allow ICMP
chain=input action=accept protocol=icmp

[it@] > ip firewall nat print
Flags: X - disabled, I - invalid, D - dynamic
0 chain=srcnat action=masquerade to-addresses=0.0.0.0
src-address=192.168.100.0/24 out-interface=Eth1_Ku-Band

1 chain=srcnat action=masquerade src-address=192.168.1.0/24
out-interface=Eth1_Ku-Band

I attached a picture to show that mikrotik actually give an icmp reply. But i’m clueless why the client not receiving the reply.

Really please, i need even a little clue for this.
1.jpg

Are you connecting with ether1 and hase the routerboard default configuation?

I connect port 1 to WAN 1
port 2 to WAN 2
port 3 - not used
Port 4 and 5 to Switch
Switch using VLAN to separate between Back Office and Guest.

Topology :
Client — Switch — Mikrotik — WAN

As for the configuration,
i already set it up a bit for my office needs, but it is only a basic setup.

Like :
Static routing to WAN
and
NAT for that.

As for master port setup, i already set it to none for all ports.