I'm currently setting up a FortiGate firewall and facing a strange issue. The FortiGate WAN interface is directly connected to my ISP router.
From the FortiGate, I can ping the ISP gateway successfully.
However, from the ISP router side (or any host behind it), I cannot ping the FortiGate IP.
Here’s what I’ve checked so far:
Ping is enabled on the WAN interface (set allowaccess ping is configured).
The interface is up, IP is correctly assigned, and the cable is physically connected.
No local-in policy is blocking ICMP.
No trusted hosts are configured under the admin settings.
Subnet and default routes appear correct.
and when I connect that ips wire to my laptop it can get the internet access and able to ping my ip from outside network.
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