Strange Ping problem.

[Leeos]

Hi I have FortiGate 200D with V,5.6.8,

When I ping IP address (Its public DNS server IP) from my PC I Get :Destination host unreachable.

When I try to ping connected directly to the router - all good.

When I ping from the FortiGate CLI - all good.

I try few random IP addresses from my PC and - all good

Why and How it block this address!? and maybe more I don't know of. 

I have no idea where to check.

[Leeos]

Update: I rebooted FortiGate this morning and now

the pings works fine:)  Wonder what happened

[umutkacar]

Hi,

Did you check your Forward Traffic logs for that destination IP on your FortiGate?