UDP NAT traffic but no response on MikroTik RouterOS

nat udp mikrotik routeros

I have had the same problem, but looks like there is a solution at Mikrotic wiki: https://wiki.mikrotik.com/wiki/Tips_and_Tricks_for_Beginners_and_Experienced_Users_of_RouterOS#Port_forwarding_on_RouterOS

In addition to the srcnat rule I have added

/ip firewall filter add chain=forward action=accept in-interface=wan_interface connection-nat-state=dstnat connection-state=established,related

before FastTrack rule and looks like it did the trick

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