no ping from lan to wan and router to wan

RouterOS Beginner Basics
1

i have rb951 working as soho router.

i got no ping from lan to wan and from router itself to wan.

Internet is working ok.

Ping from lan to bridge is ok.

Could it be the result of the router being hacked so i remove all the changes than upgraded the firmware?

What to do now ? use netinstall and clean all memory and make all setting once again?

2

Maybe check your filter rules if you are dropping icmp on the forward chain

3

Or, after following advice of @p3rad0x and not noticing anything weird, post full configuration (/export hide-sensitive and replace public IP with some distinct pattern, same for SSID and/or PSK) so we can look into it.