BUG 1164092 NP7 FortiGates v7.2.11 may stop sending traffic out on certain interfaces https://community.fortinet.com/t5/FortiGate/Troubleshooting-Tip-NP7-FortiGates-on-v7-2-11-may-stop-sending/ta-p/396301 1128652, 1164092 On NP7 platforms, a change in the destination MAC address or fib change may cause traffic to stop on certain interfaces. Workaround : Disable offload on policy rules.