Check your routes and network setting s

Firewall is successfully pinging the DMZ server, however the local PC cannot reach it. This may indicate that there is a firewall rule missing that permits traffic from the local PC's IP address to the port of the DMZ server. Alternately, the firewall's source NAT or state inspection settings may be causing issues. To restore connectivity, look for these problems and make the necessary adjustments to the firewall setup. Remember that identifying the precise reason and applying the appropriate remedy will depend on specific rule specifics and logs.