Fortigate 401F Stop Working

[forti123]

Hi all,

i am facing one of the strange issue with FortiGate 401F model it run Firmware Version 7.0.12.

suddenly sometimes this FortiGate stop working even i can not access internal corporate subnets and internet but when i am checking 8.8.8.8 from FortiGate firewall Console i can reach to 8.8.8.8 but client can not ping 8.8.8.8 and can't brows to the internet.

i was opened TT with FortiGate Tach still they are also looking for this issue this issue happen sometime in a week two times and sometime in a month.

i troubleshoot allot and check the internal network after troubleshooting the last thing which i did it was i configure on of the physical port of the FortiGate to check and allow that test subnet to internet for testing purpose when this issue happen i connect my laptop direct to that test port but i had no internet so due to that i figure out that issue is with FortiGate firewall  becouse  even direct from FortiGate i dont had internet, during this period of time even i can not reach my internal subnets as well, it down the functioning for 5 minuets after 5 minuets everting coming up and working.

any one else had the same issue.

looking forward for your nice comments on this.

[spoojary]

Also it would be great if you upgrade the FGT to the latest version because of the recent vulberability which has come into light regarding the sslvpn.